Sharpen your mind one puzzle at a time with Brain Games for Brain Power, Vol 4. This fun book will boost your memory and mental sharpness with a variety of puzzles, word games, logic conundrums, trivia quizzes and more. Featuring favorites like crosswords, word searches, and Sudoku, you’ll also enjoy less-familiar puzzle types to test your logic, spatial and numerical skills along with your knowledge of long-lost bits of history. With more than 250 challenges at varying levels of difficulty, there is sure to be something to delight everyone!