The book contains a reconstruction and a research of the religious and philosophical concepts of Ibrahim ibn Sayyar an-Nazzam, an outstanding leader of Basri school of the Mu’tazila movement. Based on available materials, the author sets out not only to provide comprehensive information about the famous thinker’s biography and teachings, but also to give a general idea of the early stage in the development of the discourse of the Islamic kalam’s classical phase.

The book will be useful for experts (arabists and philosophers) as well as a wide range of readers interested in history.