Gathers little known facts about male genitals, the sexual behavior of humans and animals, impotence, artificial insemination, venereal disease, and sexual folklore
A very short read (only 80 pages or so), but filled with interesting factoids (from Napoleon's cystitus to whale foreplay) and some very dry humour.
Did you know that impotence is most commonly found in elderly doctors and least commonly found in elderly priests? Seems too good to be true, but now you know.