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BuffBook
BuffBook guides readers through muscle growth and resistance training in research-based chapters.
About BuffBook
BuffBook is a free web guide to muscle hypertrophy and resistance training. It covers muscle biology, drivers of growth, regional specificity, exercise selection, training variables such as intensity and volume, program structure, and nutrition including calories, macros, and supplements.
The material is organized in chapters 00 through 07 with frameworks, chapter exercises, and program templates. The book content requires no account and is stated to remain free; custom plans are presented as a separate optional shortcut.
Key features
- Chapters on muscle biology including mechanotransduction and satellite cells
- Explanation of mechanical tension versus metabolic stress and damage
- Guidance on exercise selection by stability, loadability, resistance profiles
- Coverage of intensity, volume, rep ranges, frequency, progressive overload
- Program templates with mesocycles, autoregulation, deloads, plateau handling
- Nutrition section on calories, macros, body composition phases, supplements
Best for: Readers who want research-based information on muscle growth and want to build their own training program.
Good for
- Book content is free with no account or credit card required
- States that claims cite peer-reviewed primary sources
- Includes chapter exercises, frameworks, and program templates
BuffBook at a glance
- Website
- buffbook.org
- Category
- Health & Fitness › Health & Fitness Resources
- Type
- Website
- Pricing
- Free
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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BuffBook FAQ
Is BuffBook free to read?
Yes, the site states its content will never be paywalled and no account or credit card is required.
Do I need a custom plan to use the guide?
No, custom plans are described as an optional shortcut, while all concepts, frameworks and evidence are free.
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