The Great Big Puzzle Book is a large-format activity and puzzle compendium published by Publications International. This oversized book features an extensive collection of puzzles designed to entertain and challenge puzzle enthusiasts of all skill levels.

The book includes a wide variety of puzzle types such as crosswords, word searches, sudoku, logic puzzles, trivia challenges, and brain teasers. Its generous page count and large print format make it easy to work through puzzles at home or on the go. The "Great Big" format means more puzzles and more variety in a single volume, providing hours of engaging mental exercise and entertainment.