About personified religions and their lives and roles across history. It can be read online here with bi-weekly updates, and complete volumes can be downloaded for free here.
Anthreligion: Volume 1
This volume is about changes in the religious landscape in the Roman Empire.
Anthreligion: Volume 2
This volume focuses on the birth and development of Buddhism.
Anthreligion: Volume 3
This volume covers events during the Islamic Golden Age.