This volume honors Martin Gardner, with a variety of articles connected to puzzles, magic, and mathematics, including the history behind given puzzles, solitaire puzzles, two-person games, and mathematically interesting objects. The book offers contributions from world-leading puzzle designers, puzzle collectors, mathematicians, and magicians who have been inspired by Gardner to enter mathematics, to enter magic, to bring magic into their mathematics, or to bring mathematics into their magic. Topics include tangrams, peg solitaire, sodoku, coin-weighing problems, anamorphoses, and more.