20:TWELVE:20 Ultimate Training System Workout Only Manual (20:TWELVE:20 Advanced, Adaptive, Pyramid Training System Workout Only Manual)

Reader Q&A

To ask other readers questions about 20, please sign up.

Unanswered Questions

About Goodreads Q&A

Ask and answer questions about books!

You can pose questions to the Goodreads community with Reader Q&A, or ask your favorite author a question with Ask the Author.

See Featured Authors Answering Questions

Learn more