Six of one, half a dozen of the other things…in Eric. However many there are, they’re in alphabetical order below. The chronological list is here.
Demonologie – Studied by Eric. Contains a Riinjswin and a Winswin but not a Rincewind. Those found in the tome had more wings than the wizard.
Mallificarum Sumpta Diabolicite Occularis Singularum – The Book of Ultimate Control. Eric owns a copy. The wizards do too but never read it.
Names of the Ants – By Humptemper. Once used by the wizards of Unseen University in an unsuccessful to attempt to stop a haunting.
Octavo, The – The most magical of all books, located in the library of UU. It is “the last remaining copy of the Creator’s own grimoire.”
Some Little Known Aspects of Kuian Rain-Making Rituals – Unfinished(?), seven-volume treatise on the subject by Archchancellor Ezrolith Churn.
The Joy of Tantric Sex with Illustrations for the Advanced Student – By A Lady. Perused by the Librarian.