- Perceptual assurance and the reality of the worldErrol E. Harris
- Fundamentals of philosophy; a study of classical textsErrol E. Harris
- The restitution of metaphysicsErrol E. Harris
- Spinoza's philosophyErrol E. Harris
- The Foundations of Metaphysics in ScienceErrol E. Harris
- Apocalypse and ParadigmErrol E. Harris
- The spirit of HegelErrol E. Harris
- The problem of evilErrol E. Harris
- Nature, mind, and modern scienceErrol E. Harris
- Atheism and theismErrol E. Harris
