Brain Games Crosswords Author:Publications International Ltd. Contains more than 80 crossword puzzles with themes such as geography, books, food, sports, movies, and entertainment. — These puzzles are perfect for keeping your brain happily engaged without being too difficult. Whether you're a beginning puzzler or a seasoned pro, Brain Games® Crosswords will challenge your mind in a fun, stress-free way. — An... more » answer key can be found in the back of the book to help you with more challenging clues and allow you to check your work.