Federal prisons (min to medium security) cannot take away role-playing books. They can limit you to 10 books total, though. And, as long as your papers do not

Federal prisons (min to medium security) cannot take away role-playing books. They can limit you to 10 books total, though. And, as long as your papers do not have any prison layouts or escape plans, they cannot take them either. There are legal courses of action an inmate can take to force the facility to comply with policy with regards to these things. Allowed subject matter is set by BOP system-wide. It would have had to be a state prison or perhaps a pre-trial facility