Timothy Ferriss
Timothy Ferriss (born July 20, 1977) is an American author, entrepreneur, self-proclaimed "human guinea pig", and public speaker. He has written a number of self-help books on the "4-hour" theme
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Author 2
| Title | Format | |
|---|---|---|
| The 4-Hour Body | Trade Paperback | |
| The 4-Hour Workweek | Hardback |