Hans-Jürgen Döpp 
Erotic Encyclopedia [PDF ebook] 

What happened to the insolence of the 18th-century libertines or to the carefree excesses of the Belle Époque and its legalized brothels? They have merely been inhibited and buried by the nowadays political correctness and the aggressive one-eyed morality.
This book disregards conventional thinking and presents 800 reproductions that illustrate erotic art from Ancient Greece down to the present era in both Europe and Asia: when reproduction is not seen as an end in itself. With no hesitation nor inhibition, the author explains why erotic art is a key factor of societal development.