Classical Philosophy: A history of philosophy without any gaps, Volume 1

Man's Search for Meaning

Philosophy in the Hellenistic and Roman Worlds: A history of philosophy without any gaps, Volume 2

Sophie's World

Philosophy in the Islamic World: A Very Short Introduction

Zero: The Biography of a Dangerous Idea

Ibn Sina (Avicenna): A Very Short Introduction

Think: A Compelling Introduction to Philosophy

Byzantine and Renaissance Philosophy: A History of Philosophy Without Any Gaps, Volume 6

Story of Philosophy

Medieval Philosophy: A history of philosophy without any gaps, Volume 4

Message to the Blackman in America

No God but One: Allah or Jesus? (with Bonus Content): A Former Muslim Investigates the Evidence for Islam and Christianity

Al-Kindi

The Consolations of Philosophy

Studies on Plotinus and al-Kindi

The Lessons of History

Al-Rāzī

Straw Dogs: Thoughts On Humans And Other Animals

Studies on Early Arabic Philosophy