Brain Building Activity Book For Smart Kids Ages 8-12: Activity Puzzle Book with 100 Large Print Puzzles-Word Search, Word Scrambles, Sudoku, Mazes & ... of Puzzles for kids age 8, 9, 10, 11, 12 [Studio NW, MAC Art] on Amazon.com. *FREE* shipping on qualifying offers. Brain Building Activity Book For Smart Kids Ages 8-12: Activity Puzzle Book with 100 Large Print Puzzles-Word Search, Word Scrambles, Sudoku, Mazes & ... of Puzzles for kids age 8, 9, 10, 11, 12