I’ll Show You Mine: Book Reveals Beautiful, Diverse Vaginas (Vulvas!), by Jiz Lee
"When I saw I'll Show You Mine, I got very excited. Here’s a “non-porn” example of diversity in sexuality to join the ranks of previously published materials such as the fun Cunt Coloring Book by Tee Corinne and Joani Blank’s Femalia."
Full review (halfway down the page): http://jizlee.com/wordpress/ill-show-you-mine-book-reveals-beautiful-diverse-vaginas-vulvas/