ISPS publishes a number of books listed here – anyone can use the access code “ISPS14” to get a 20% discount when buying ISPS books from Routledge (use that link) before December 31st, 2014.
The most popular book in this series has been “Models of Madness: Psychological, Social and Biological Approaches to Psychosis” edited by John Read (who has extensively documented the links between childhood adversity and psychosis) and Jacqui Dillon, chair of the UK Hearing Voices Network and an international speaker and trainer. This book is now in its second edition.