Small Publisher of the Year 2011, 2010, 2008, 2006 

Dr Cacilda Jethá, MD, is a practising psychiatrist, specialising in psycho-sexual disorders and couples therapy. She has done field research on sexuality for the World Health Organisation.

Ryan and Jethá are married and live in Barcelona, where they co-author a blog for Psychology Today: http://www.psychology today.com/blog/sex-dawn


Books by this author:

Sex at Dawn

Sex at Dawn: the prehistoric origins of modern sexuality

Christopher Ryan and Cacilda Jethá

ISBN: 9781921844249
RRP: $27.95
Pub date: August 2011
Category: Sexuality and Relationships