Techniques for titillation: A brief history of art and eroticism
Updated 1146 GMT (1946 HKT) February 15, 2017
Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.
Olivier Zahm is a photographer, critic and editor-in-chief of Purple magazine.
(CNN)In the history of Western art, the erotic has long been hidden, ignored or condemned.