of the big penis book (nsfw)

The Big Penis Book (NSFW): This is the title of a book. Yes as the title suggests...

Product Description
This hefty volume is profusely illustrated with more than 400 historic photos of spectacular male endowments, including rare photos of the legendary John Holmes. The majority of the photographs are from the 1970s when the sexual revolution first freed photographers to depict nude men.

From the Author
Dian Hanson is TASCHEN's sexy book editor. As a 25-year veteran of men's magazine publishing, she edited titles including Puritan, Oui, Outlaw Biker, Juggs, and Leg Show. Her many books for TASCHEN include Vanessa del Rio: 50 Years of Slightly Slutty Behavior and R. Crumb's Sex Obsessions.

Read more about the book here (NSFW).

There is also a Big Book of Breasts (NSFW) also by the same author.