The ABCs of RPGs by Ivan Van Norman and Caleb Cleveland
Inspired by a lack of children's books about gaming, The ABCs of RPGs got its start on Kickstarter and is sure to delight both child and parent. It's available here in hardcover.
"An adorable book for geeks big and little." -Felicia Day, author of You're Never Weird on the Internet (Almost)
All proceeds go to Worldbuilders.