- Bards College in Solitude, on a shelf in the library on the first ground floor.
- Castle Volkihar Keep, on a shelf in a sideroom to the dining hall.
- Nightcaller Temple, on a shelf in the library on the main level.
- The Katariah, on a shelf during or after the quest 'Hail Sithis!'.
- Can be bought from Urag gro-Shub in The Arcanaeum.
- Carried by Mirabelle Ervine. Can be pickpocketed from her or taken from her corpse after she has been killed.