How to send things to me at Alderson

I do not need much and can't have much but I would love a letter. Want details on what you can send see. https://www.bop.gov/locations/institutions/ald/

Mostly just plain white envelopes with letters. Books are nice but I can only have 5 with me at a time. News papers, magazines are nice. I can always share with others who do not have friends to send them things to read.