“New rules introduced by the [UK] justice secretary ban anyone sending in books to prisoners. From now on, any man, woman or child in prison will not be able to receive a book from outside. This is part of an increasingly irrational punishment regime orchestrated by Chris Grayling that grabs headlines but restricts education or rehabilitation. The rules governing possessions of [UK] prisoners are arcane and not consistently applied by every prison. These new restrictions relate to a downgrading of the system of rewards and punishments, ostensibly designed to encourage prisoners to comply with prison rules. Yet the ban on receiving books is a blanket decision, so no matter how compliant and well behaved you are, no prisoner will be allowed to receive books from the outside.
— Frances Crook, politics.co.uk