32 books • 5 series
The Puzzle Universe
Puzzle Universe: The History of Math in 315 Puzzles
Leonardo's Mirror and Other Puzzles (Dover Recreational Math)
Monty Hall Problem and Other Puzzles (Dover Recreational Math)
The Little Book of Big Brain Games
More Brainmatics Logic Puzzles (Brainmatics)
BrainMatics (Brainmatics)
Peerless Probability Problems and Other Puzzles (Ivan Moscovich's Mastermind Collection S.)
Genius Gymnasium
Brain-flexing Balance Problems and Other Puzzles (Ivan Moscovich's Mastermind Collection S.)
Loopy Logic Problems and Other Puzzles (Ivan Moscovich's Mastermind Collection S.)
Tough Topology Problems and Other Puzzles (Ivan Moscovich's Mastermind Collection S.)
Big Book of Brain Games
Magic Arrow Tile Puzzles
Sensational Shape Problems & Other Puzzles (Ivan Moscovich's MasterMind Collections)
Knotty Number Problems & Other Puzzles (Ivan Moscovich's MasterMind Collections)
Perplexing Pattern Problems & Other Puzzles (Ivan Moscovich's MasterMind Collections)
Cunning Combination Problems & Other Puzzles (Ivan Moscovich's MasterMind Collections)
1000 Playthinks
Mindgames Pattern Games
Mindgames Network Games
Mindgames (Mindgames)
The Think Tank
Mirror Magic