To Mock a Mocking Bird

Satan, Cantor, And Infinity And Other Mind-bogglin

Forever Undecided

Logical Labyrinths

The Gödelian Puzzle Book: Puzzles, Paradoxes and Proofs

A Beginner's Guide to Mathematical Logic

The Magic Garden Of George B And Other Logic Puzzles

A Beginner's Further Guide To Mathematical Logic

Reflections: The Magic, Music And Mathematics Of Raymond Smullyan

Who Knows?: A Study of Religious Consciousness

The Tao Is Silent

Four Lives: A Celebration of Raymond Smullyan