You cannot send books from your own address. The facilities will only accept books and magazines "from the publisher". You can go to Amazon and order the books but make sure that the shipping address is that of the inmate's facility and include their inmate ID number.
https://www.inmateaid.com/ask-the-inmate/how-do-i-send-books-from-amazon-do-i-send-it-like-regular-mail#answer
Accepted Answer Date Created: March 20,2015