The Messages Project is based in the state of Virginia and has been running since 1999. It is a volunteer resource that helps keep families in touch with their incarcerated loved ones.
As part of their fund raising activities, they have produced a resource book that can be used by anyone with a friend or family member in prison, with projects and activities to help reintergration and ste#rengthen family bonds.
The book is available for $20 here
http://themessagesproject.org/book