Book Reviews

“If you are looking for a real-world prescription for “living” versus just “not dying,” you must read this book. I would challenge anyone to read it and not be transformed.”“Karen Brown provides those of us who aren’t, and will never be, extreme athletes an opportunity to experience vicariously through her experiences. Unlimiting Your Beliefs; 7 Keys to Greater Success in Your Personal and Professional Life takes you on an amazing journey that culminates with Karen finishing the Ironman World Championships in Kona, Hawaii. It is a journey to the pinnacle of extreme sports, and as a reader, I truly felt as though I had completed the journey as well.”

“Karen’s writing style is fluid and very descriptive. She uses vivid imagery, and provides insight into how she is processing her surroundings, which really engages the reader. Her willingness to be vulnerable and share some of her personal tragedies and challenges allows the reader to relate to her on a very personal level. It also inspires the reader as her story unfolds and we get to see the raw grit and determination that is necessary to persevere to the status of elite athlete. I became so engrossed in her wonderful story telling, I consumed the book in one sitting!”

Michael Watkins
President, The Alchemy Group

“I received an advance copy of Unlimiting Your Beliefs by Karen Brown and loved her story. She shares her personal story of always feeling she had to prove herself, the desire to pursue her own passions and overcoming one of the greatest challenge, The Ironman.” Karen’s story is filled with raw emotions, challenge, and victory. Whether you are an athlete or not, Unlimiting Your Beliefs is a excellent read! There are many powerful resources and strategies that one can apply into their own life. I highly recommend this book!”

Cynthia Mazzaferro
Inspirational Speaker, Life Coach, Energy Healer

“Karen Brown demonstrates a tremendous understanding of what it takes to transform limiting beliefs and attitudes that keep one from achieving their goals and dreams. Her book Unlimiting Your Beliefs: 7 Keys To Greater Success in Your Personal and Professional Life is a practical guide and compelling reading for anyone wanting to empower their lives. I feel like she takes the reader by the hand as she shares her story and shows how to live a more reflective and conscious life. It is truly inspirational and helped me personally to tap into the dreams I have put aside, and now can see becoming a reality.”

Michele Germain LCSW, LMFT,
Author, Psychotherapist and Life Coach

“WOULD YOU MAKE THE ULTIMATE SACRIFICE? You have a Big Dream, a Determined Will to do something that you can only dream of. If you didn’t know the pathway, would you give up? Would you pay the ultimate price of giving up something personal to realize the dream? Most people give up because they don’t have a guide. Author Karen Brown has given this incredible story and the blue print she followed to manifest her dream. It’s authentic and real…a COACH has taken the path less traveled, a COACH has gone where you want to go…Author Brown is that coach and this is the students’ hand illustrating a true story of accomplishing her ultimate dream, something few people in the world will ever do. I loved this book!”

Tom Dutta
Founder/CEO Kre-at

“Karen Brown tells a determined and transformative story of her journey to
race in one of the worlds toughest races. This book is about how to conquer the limiting beliefs that crowd our mind and how to unleash the amazing power to achieve our desires. Through the ups and downs, Karen pushes
through to the end and shows us how to actively change our mindsets to focus
on our goals. What an amazing story of human potential!”

Juan Pablo Taboada

“In Unlimiting Your Beliefs: 7 Keys To Greater Success in Your Personal and Professional Life, author Karen Brown takes readers on her own journey of self-discovery, with all its peaks and valleys, as she pursued her dream of competing in the IRONMAN World Championship. Readers will greatly enjoy the engaging story of her pursuit and also benefit from Karen’s lessons learned along the way. She gives readers permission to fill in the blank with their own big dreams and then hands over the keys needed to realize those dreams.”

Tamie Hopp
Director of Alumni & Foundation Services
National American University and the NAU Foundation

Unlimiting Your Beliefs is an impressive and inspiring story. Karen tells about her journey to compete in one of the most grueling athletic events, the Ironman. This not only shows what it takes physically but also mentally. The vulnerability that Karen shows is remarkable here and a lesson to us all. Her path is not an easy one and full of what we all face day to day. I know for myself there is a place where I find myself asking, “Am I enough?” like I think many of us do. Karen too asks this question and shows us all how to move past this and conquer fears about achieving our goals. These goals can be any, since the Ironman asks Karen to conquer her physical tasks but the mental ones are the bigger challenge. This is an inspiring read for all to get past their “beliefs” about what they are capable to do and achieve what we really want!!!!”

Forrest Pickett
Senior Staff Product Marketing Engineer | Xilinx

“I have never run a marathon, participated in any triathlon, or ever conceived the notion of ever attempting anything associated with an Ironman competition; however, after reading Unlimiting Your Beliefs: 7 Keys to Greater Success in Your Personal and Professional Life; Told Through My Journey to the Toughest Race in the World I feel as though I am ready to climb Mount Everest! Karen Brown shows us what it is truly like to be in the “flow” or the “zone” of simply setting goals, achieving them, and the complete transformation that takes place as you do. I felt as though I was right beside her in each competition! Her story is an amazing journey of self-discovery and determination that will change your world view—and, of course, changing yourself! I couldn’t help but think about Psalm 121: “I lift up my eyes to the hills. From where does my help come? My help comes from the Lord, who made heaven and earth.” Karen not only shows us the importance of seeking God’s guidance, but she shows us that there is nothing (but ourselves) that can stop us from running up and over those hills! An awesome read that you will not be able to put down! J.W. Kitson (author of Song of the Tree Frogs)”

John Smith

“For anyone looking to add to their read list, check out Karen Brown‘s new book, “Unlimiting Your Beliefs.”  I met Karen last year and in the time we spent together she made a substantial impact on my business and personal mindset. CHECK IT OUT!”

Ben Riehle
Team Leader – Apex Team Keller Williams Southern Arizona

“I thoroughly enjoyed reading Karen’s account of her journey. I have already read this book TWICE in a week and had different “ah ha’s” from each read. Author and Coach Karen Brown has shared her journey of realizing her biggest dream. A HUGE goal!! She shares that she had to ask for help. She wrote about the things she did right—and the things she did wrong…and what she learned from them. She asks us to ask ourselves: Are you who you want to be? Have you reached your full potential? Have you achieved all that you can? Through Karen’s story and her 7 Keys to Greater Success, she will help you learn how to identify your goals and how to achieve them. I am not a triathlete by any means, and I thoroughly enjoyed reading Karen’s account of her journey. I have not achieved my full potential….have you?”

Jennifer Walsh, Realtor
Keller Williams Premier Realty in Rochester, Minnesota

“Compelling, Deep, and Emotionally Revealing. As I consult business owners I can attest that what Ms. Brown writes about in her challenge to compete in one of the hardest competitions in the world is similar to much successful business owner’s journeys. I found it surprising the level of detailed struggle, revealing of her emotions and thoughts that most authors are shy to talk about. I don’t know many friends that would reveal to me personally what she has written. And I certainly don’t know too many business owners who would be this truthful. If she holds anything back I could not find it. It was a very powerful emotional journey to success. It’s a very compelling read that I believe will make it hard to stop reading.”


“Deep, mature honesty with self and others! I don’t even like competitive sports but I loved this book. It provides a clear blueprint for any person who is pursuing a difficult goal of any type, personal, social, or professional. I rated this book at five stars, something I seldom do, because of Karen’s repeated, honest, and insightful soul-searching. She is brutally honest with herself at each step of her journey–a feat few people can achieve because we all shield ourselves in protective layers to avoid true ownership of areas we must improve. Like I said above, I don’t care about sports but in the chapters where Karen reached her goal, I repeatedly felt a bubble of emotion welling up from deep parts of myself, urging her on and celebrating her mastery over her body and mind. The pictures in the book share deeply personal times from her struggles and success. This is a well written book with an outstanding message for anyone seeking to achieve a major goal in their life!”

Karel Rogers PhD Vertebrate Zoology / Paleoherpetology
Former Professor of Biology Emeritus, Dean of Science and Natural Resources

“A clear and concise handbook that offers guidelines for realizing your potential!
Clear and concise pathways towards enabling ways to unlock your potential. So many books include waffle but Karen’s book include actionable guidelines towards achieving what you are capable of. Great job.”

Erik Seedhouse PhD.
Aerospace Scientist, Author, Astronaut Training Consultant

“Unlimiting Your Beliefs” by Karen Brown was gifted to me at Christmas. It came at the perfect time to start the new year with a new attitude. I am not a competitive athlete but I still needed inspiration to get my body and mind moving. This book has been the perfect tool.

Linda Ybarra
Retired International Flight Attendant

“Karen Brown is the real deal! She motivates and inspires, while baring her soul. Through her writing, Karen takes us with her on her quest to conquer the formidable IRONMAN! She willingly shares her frustrations and nagging self doubt that we all experience. She’s one of us. Then she hands us the road map and shows us how we too, can overcome our own limiting beliefs and achieve our biggest goals. Everyone should read this book!”

Sue Balch
CEO, Balch Logistics, LLC

“For anyone questioning their ability to accomplish something or having a hard time visualizing being successful I strongly recommend reading Karen’s Brown’s book, Unlimiting Your Beliefs. This book is NOT about being number one or being the highest achiever; this book is about digging deep down, visualizing your success and transforming yourself to accomplish something that may seem impossible. Even though the backdrop is an athletic journey, the seven keys have meaningful application in business as well. By believing in yourself and learning how to get rid of doubt there’s nothing you can’t accomplish, is the message that I received from reading this book.
I love the story Karen gives us of her quest to finally accomplishing her dream to compete in the Ironman in Kona, Hawaii. Karen is totally real in the entire story writing about her weaknesses and not only how she dealt with them but how she found the right people in her life to either coach or mentor her to improve. It is her relatability to everyone, that makes this book so helpful. I will always reference this story when I feel as though I am not able to accomplish something. What Karen had to endure just to be able to compete in the Kona Ironman was insanely difficult and could only be accomplished by rewiring her limiting beliefs. Thank you, Karen for such an inspirational story and message!”

Aaron Muller
Author of The Lifestyle Business Owner – Business Broker

“I was shocked to discover that I have been the biggest obstacle in my life! I have always been very ambitious and a very hard worker, but always let that small inner voice dissuade me from stepping out to experience more. After reading the book, I took a huge risk and purchased a business that I can do online nights and weekend. My long term goal is to become certified through the business in nutrition, weight management and, so I can educate others about the importance of the mind, body and spirit connection and UNLIMITING YOUR BELIEFS! Every time I feel frustrated I think of what you did and I laugh at my doubt! J I have always been in high level positions, but my ability to grow and benefit financially has been limited by the business. Now, I have 100% control over where this business goes. I just started and feel very anxious and nervous because that small voice is telling me “you can’t do this”. But, each night I spend a few hours laying the foundation and will achieve the goals I have set for myself, thanks to meeting you and hearing your story!!!”

Denise Cannata
Campus Director – National American University

“Don’t Let Limiting Beliefs Keep You from Achieving the Life You Want for Yourself! Let’s celebrate the human journey and honor our privilege to reach our true potential. -Karen Brown
There were so many nuggets of great information and motivation throughout Unlimiting Your Beliefs. Karen wrote about the need for us to trust our own abilities even when someone else doubt you. She stated that she needed to quiet her thoughts to clarify her focus and reminded me that sometimes “someone else” includes our own minds—because our minds never stop telling us stories about how we’ll fail if we try. While this is a story of Karen’s journey to the Kona Ironman competition, and it’s something I have no interest in, I just couldn’t put this book down. She sucks the readers in with her advice, attitude and who she is as a person looking to grow herself. I will leave this review with something Karen said that I loved in the book – take your goals seriously, but take yourself lightly. This is a great read on so many levels!”

Amazon Review

“Her application of nutrition and the cognitive psychology of changing self-limiting beliefs add to anyone’s knowledge base of how to perform and achieve better in all areas of life. Karen Brown wrote a courageous, informed and inspiring book about her journey and achievement of her dream and vision. Her personal story and her resilience along the way bring her journey alive. Her application of nutrition and the cognitive psychology of changing self-limiting beliefs add to anyone’s knowledge base of how to perform and achieve better in all areas of life. I enjoyed reading this book and hope you do as well.”

Robert A. Mines, Ph.D., Chairman and Chief Psychology Officer, MINES and Associates, a national business psychology firm.

“Inspirational Read! Karen Brown’s “Unlimiting Your Beliefs” is an inspirational read. Well written and a great guide for anyone thinking about triathlons.”

Amazon Review

“Amazing Book! Really changed my mindset on balancing life goals with endurance training. This book really gave me a whole new perspective of how endurance training can really strengthen all other aspects of our lives!”

Joshua Blakeman

“Break free from your Self Limiting beliefs and experience a New You! From the time I heard Karen on the Google Partners’ podcast on Google Podcasts, the quality of my life journey has accelerated exponentially. The growth is largely due to unchaining myself from my Self-Limiting beliefs, something that is the critical element of Karen’s coaching.
The book provides more insights and examples that would enable anyone to reflect, examine and act on all that holds us back from reaching greater heights and unlocking more of our potential with each passing day.
The ideas and insights are gold dust if we introspect and work on our own Self.
Good luck in your journey!”


“For the past 26 years, I have hosted one of the largest high school and middle school cross country meets in Colorado. It is “true” cross country running through weeds, mud, and my signature water crossings filled with inflatable gators, sharks, orcas, and lobsters. I hear from kids all the time, even years later, that this is their favorite meet of their school careers. However, just 11 days before this year’s event was to take place, I got devastating news: the park rangers at Chatfield State Park informed me that due to construction, I would not be able to host the meet there.
I made several calls to other nearby sites that have hosted meets but was met with the same responses: too soon, too big, already booked. I was resigned to the fact that I would have to cancel the meet, return everyone’s money, and disappoint nearly a couple of thousand kids.
After going through this despondency, I remembered the message from Karen Brown’s great book, “Unlimiting Your Beliefs,” and realized that this was self-limiting thinking. I set off with new determination to find a new site and make it an even better meet. I had hosted meets years earlier at the Adams County Fairgrounds, and they welcomed my meet even on such short notice.
A few schools bowed out, but even though this venue was on the diametric opposite end of metro Denver from Chatfield, most of the schools made it there. The Fairgrounds had readily available power (no need to haul out a generator and gasoline like before) and water (no need to bring out already-filled Gatorade jugs and worry about them running out), and cost me less to rent, too. Best of all, the teams all loved the new course (which I had to piece together two days before the meet!), including two great passages through the South Platte River, complete with my usual array of inflatable river critters. With all of this going for it, I think we’ll keep the meet there in the future!
So thanks to Karen and her book, I overcame what seemed like an insurmountable obstacle to deliver a resounding success!”

Bill Stahl

“Karen’s book is so relatable. I have no desire to compete in an Ironman (or anything beyond a 5k), but Karen’s story of her training journey can be compared to anyone’s big goal! Her story of how she unlimited herself by changing her thoughts can be used by anyone for anything! It’s a great read that kept me engaged from the first cover flip! Thank you Karen for helping me recognize my limiting beliefs and giving me the tools to myself!”

April Troutman

“I had the opportunity to speak with Karen directly about her book and I was extremely impressed with her authenticity and understanding of the subconscious mind. She really knows her stuff when it comes to erradicating limiting beliefs. I see now why she is a sought after speaker and leadership consultant. This book will help people understand both their physical and mental limits!”

Matt Wilson

“Is it true or is it a limiting belief? Karen’s wisdom and story is game-changing. Whether you want to play a bigger game or are confronting the challenge of a lifetime, Karen presents a roadmap to get you to where you need to go.”

Dr. Meghan Walker

“Many of us struggle with limiting beliefs. This is a particular challenge for leaders who believe they need to have all the answers, solve every problem, and care for everyone they lead. Karen Brown brings an incredible book grounded on her own experience of being held captive to limiting beliefs to help understand where limiting beliefs come from and the steps to take to break the cycle. In fact, I loved the book so much that I invited Karen onto my podcast to talk even more. It’s just that good! If you ever believed you were meant for more but something has been holding you back…this book is for you.”

Dr. Jason Brooks

“I had a wonderful conversation with Karen in an interview with her on my podcast about unlimiting our beliefs. There was so much gold shared however, in the time we had we only touched the surface. This book explains the unconscious mind with much more detail and clarity. The unconscious mind plays a major role in our success both personally and professionally and Karen is an expert in helping us remove limiting beliefs so we can play well – play better. You’ll love this book.”

Leigh Martinuzzi

“Karen breaks down some complicated concepts and serious brain science and translates it into practical and powerful strategies you can start to use immediately! Plus, she has a conversational style to her writing that makes it really compelling and enjoyable. This book will help you to change your thinking for the better both at work and at home! I highly recommend it!”

Mitch Matthews

“When we overcome our limiting beliefs, we can achieve incredible accomplishments. Karen’s story is an inspiring example of what is possible along with the details of the process that can get you there. I encourage anyone who wants to achieve their dreams to read Unlimiting Your Beliefs.”

David Shriner-Cahn

“Great Inspiration Book! I read Karen’s book when I interviewed her for my podcast. I loved her book – and I’m very far from being an athlete! My podcast focuses on business topics and Karen’s experiences in training for the Ironman easily transfer to business…and life. I really liked that she wasn’t an elite athlete when she decided to take on this big, hairy audacious goal! It really does show that we can all do what we put our minds – and our bodies – too. I’ve already suggested her book to several of my friends.”

Deb Krier

“The things we want are available to us so why don’t we have them? Limiting beliefs are holding you, me and everyone around us back from the best life possible and Karen understands this more than most. Overcoming her own limited thinking she went on to complete an Ironman event and write this book. She shares her experience and not someone else’s to help you overcome your own limits and exceed even your wildest dreams. Pick up this book and learn from someone who has lived what is in the book.”

Mike Harbour, The Lead Up Podcast host and publisher

“In this very personal read, Brown shares her struggles with training for and eventually competing in the Ironman World Championships in Kona, HI. What’s more, the reader is graced with her insights into what she’s learned through the process and has been able to apply to all other areas of life (and how you can too). I invited her onto my podcast (Read to Lead) to chat about the book and her experiences and she did not disappoint.
Inspirational, encouraging, and heartwarming accurately describe her work here.”

Jeff Brown, Host of Read To Lead Podcast