Books about Riddles

The Canterbury Puzzles, and Other Curious Problems

The Santa Claus' Book of Games and Puzzles

Puzzles and oddities : Found floating on the surface of our current literature, or tossed to dry land by the waves of memory

Conundrums, Riddles and Puzzles

The Handbook of Conundrums

How to Solve Conundrums

At the Sign of the Sphinx. Second series

Nuts to crack: A galaxy of puzzles, riddles, conundrums, etc.

Classical Enigmas, Adapted to Every Month in the Year