No More Throw Away People, the Co-Production Imperative by Dr. Edgar S. Cahn. Have you been meaning to read the 'TimeBanking Bible' but not been able to find the time?
Juliet Adams, a member of the Lyttelton TimeBank, has earned Time Credits for writing this fantastic summary of the book. Juliet's summary provides a great overview. If you would like to purchase the book, you can order a copy from Living Economies. Many public libraries also have a copy.