Firebreather Fitness: Work Your Body, Mind, and Spirit into the Best Shape of Your Life

Firebreather Fitness: Work Your Body, Mind, and Spirit into the Best Shape of Your Life

by Amundson Greg

4.6 (75)

4.6 stars from 75 reviews


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Last checked: Jul 10, 2026

Price history: $2.99 $29.99

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Perfect for you if...

  • You're an athlete or fitness enthusiast who wants more than just a workout program, you're looking for a framework that addresses your whole self.
  • You respect military and law enforcement discipline and want to apply that mindset to your own training and life goals.
  • You're interested in functional fitness and want clear technique guidance alongside the mental and spiritual components that make it stick.

Maybe not for you if...

  • You're looking for a quick-fix diet book or a minimalist approach to fitness, this demands commitment across multiple dimensions.
  • You're sceptical of spirituality or mindfulness practices and want a purely mechanical fitness guide.
  • You prefer generic gym routines over structured 21-day programs with performance standards and scaling options.

About this book

Firebreather Fitness presents Greg Amundson's integrated approach to fitness that combines physical training, mental conditioning, and spiritual practice. Amundson, a former SWAT officer, DEA Special Agent, U.S. Army Captain, and founding CrossFit athlete and coach, draws on his experience as a recognized leader in functional fitness conditioning and anti-inflammatory diet. The program includes 21-day integrated training cycles featuring innovative workouts, mental drills, and warrior yoga. It provides over 40 exercises with technique photographs, performance standards for progression, and scaling options for different fitness levels. Beyond physical conditioning, the book addresses mental toughness training and spiritual practices. It covers goal-setting, pain tolerance, purpose and focus development, and mental state management. The guide combines practical advice, training methods, and Amundson's workout programs for athletes, coaches, law enforcement and military professionals, and those pursuing high-performance fitness.

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Price History

Kindle price over time. Green zones = periods when the book was free.

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Free$14.99$29.99May '21Sep '22Aug '23Jul '26
$2.99$29.99

Currently on sale at $2.99 — 90% off peak. Price has dropped 4 times over the last 5 years. Goes on sale roughly every 351 days. Typically stays discounted for 204 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

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#72,877#1,293,419#2,513,960Apr '18Aug '23Nov '24Jun '26

Currently around #890K in the Kindle store — a niche title. Climbing the charts — 37% improvement recently.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

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4.0★4.5★5.0★Jul '23Feb '25Apr '26May '26RatingReviews

Currently 4.6★ from 75 reviews

Review activity has been quiet recently. Rating has remained stable at 4.6 over the tracking period.

Sale Prediction

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Free$14.99$29.99May '21Sep '22Aug '23Jul '26PredictedJul '26

Actual Predicted

This book is currently discounted at $2.99. It typically returns to around $29.99.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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Amundson Greg

1 book on Vagrant Press

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