Puzzle book
Encyclopedia
A puzzle book is a book of puzzles for the reader to complete. A puzzle book may contain puzzles all of one type (e.g. crossword
Crossword
A crossword is a word puzzle that normally takes the form of a square or rectangular grid of white and shaded squares. The goal is to fill the white squares with letters, forming words or phrases, by solving clues which lead to the answers. In languages that are written left-to-right, the answer...

s or sudoku
Sudoku
is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9...

) or a mixture of different puzzle types. Puzzle books may be aimed at adults or children.
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