A. J. Jacobs all books PDF/E-PUB  files are available here for download. A. J. Jacobs wrote several thought-provoking books across various genres. Here are some of his notable works “The Puzzler: One Man’s Quest to Solve the Most Baffling Puzzles Ever, from Crosswords to Jigsaws to the Meaning of Life, Thanks A Thousand: A Gratitude Journey, It’s All Relative: Adventures Up and Down the World’s Family Tree, The Year of Living Biblically, The Know-It-All, My Life as an Experiment". A. J. Jacobs, born on March 20, 1968.