The Magic of Thinking Big, first published in 1959, is a self-help book by David J. Schwartz.

[4] Thomas J. Stanley wrote on his website how Schwartz and the book motivated him to write his bestseller, The Millionaire Next Door.

Schwartz suggested how to improve Stanley's first book, Marketing to the Affluent, "Now put all your focus on how they became wealthy.

Think big.”[5] The American football coach, and sportscaster - Lou Holtz said it was his favorite book.

[6] Basketball coach Joe Harrington gave each member of the Long Beach State 49ers a copy during the 1980s.