(1977) The Tao is Silent ISBN 0060674695 (1980) This Book Needs No Title ISBN 0671628313 (1983) 5000 B.C. and other philosophical fantasies ISBN 0312295162 (2002) Some Interesting Memories: A Paradoxical Life ISBN 1888710101 (2003) Who Knows?: A Study of Religious Consciousness ISBN 0253215749 (2009) Rambles Through My Library ISBN 9780963923165, Praxis International (2015) Reflections: The Magic, Music and Mathematics of Raymond Smullyan ISBN 978-981-4644-58-7 (2016) A Mixed Bag: Jokes, Riddles, Puzzles and Memorabilia ISBN 978-098-6144-57-8