Shay Carl is an American vlogger, author and YouTube personality. Wikipedia
Source: "Amazing." - Shay Carl
Source: "The book that I’ve given out the most is [this book] because I was a missionary for two years and that’s all I did is pass that book out. I think it has value." - Shay Carl
Source: Shay Carl recommended this book in the "Tools of Titans" book.
Source: Shay Carl referenced this book on "The Tim Ferriss Show" podcast.
Source: "A staple that I have listened to three or four times." - Shay Carl
Source: "One of my favorite books. I think that we so undervalue the power of thought." - Shay Carl