Endure: How to Work Hard, Outlast, and Keep Hammering

source https://www.amazon.com/Endure-Work-Hard-Outlast-Hammering/dp/1250279291/ref=zg_bs_books_15/145-0948885-4128067?_encoding=UTF8&psc=1&refRID=CZMV9FH0Q1DX30RCQKK7