via http://iis.ac.uk – The Epistles of the Brethren of Purity is published by Oxford University Press in association with the Institute of Ismaili Studies, London. This bilingual series consists of a multi-authored Arabic critical edition and annotated English translation of the Rasa’il Ikhwan al-Safa’ (ca. tenth-century Iraq).
- The Ikhwan al-Safa’ and their Rasa’il: An Introduction
- The Case of the Animals versus Man Before the King of the Jinn
- On Logic
- On Music
- On Magic
- On Arithmetic and Geometry
- On The Natural Sciences