‘Tis a short list but essential. See the alphabetic list here.
Morris Minor – A British roundworld car to which Hilda’s broom is unfavorably compared in Equal Rites.
Necrotelicomnicon – A famous book with pages made of lizard skin. Possibly used where comic book enthusiasts gather to communicate with the dead.
Demonylogie Malyfycorum of Henchanse thee Unsatyfactory – One of the first books Eskarina Smith attempted when learning to read.