Prisons Foundation is a group dedicated to publishing books and guides by and for inmates and they currently have immediate opportunities for the public to help prisoners, both in D.C. where they are headquartered, and nationwide.

Here’s what you can do:

“Choose your favorite book from the various categories ranging from memoirs to novels to poetry to artbooks. You will find on the very first page of each book the prison author’s name and address. Write him or her a letter of encouragement. Use your own return address or use ours.”

For more information about helping prisoners through their writing, head to prisonsfoundation.org