For therapists who want to deepen their ability to work with dissociation, and for anyone who wants a better grasp of their own experiences of "not being there", I highly recommend The Dissociative Mind in Psychoanalysis. Edited by Elizabeth Howell and Sheldon Itzkowitz, this thoughtful book has articles ranging from historical perspectives, to clinical implications, to current research on dissociation and dissociative disorders. I found this book very enlightening.