Rasaail fi al-Firaq (Essays on Sects) - Muhammad Ibrahim al-Hamad

This book consists of a number of specialized essays written on sects. The author is an expert in sects and religions, having taught this subject in college. He compiled the teaching material, then went on to revise and add to it until he deemed it suitable for printing and beneficial for students and teachers alike. The author addresses nine sects, dedicating a separate essay to each:

The Khawarij and their most famous sects and beliefs.

Summary of the beliefs of the Murjia, Jahmiyya, and Mu'tazila.

A brief overview of Ash'arism.

A brief overview of Maturidism.

An introduction to Sufism.

Nusairism (Alawism).

Babism.

Baha'ism.

Qadianism.

Very nice Saudi edition.