This was a wonderful read that lost no approachability for being so informative. It has an (admitted) focus on physical disabilities, but I think it stands as a valuable resource for all persons. I'll be recommending this to friends who work in high school education as a great addition to their libraries. 
At only 72 pages it is a quick page-turner. Definitions and context are provided throughout, and additional resources suggested at the end. 
Andrews' illustrations are wonderful as well! Overall a very well made introduction to some very under-represented aspects of sexual lives and health.