The Adult Activity BookThis is the perfect book for any adult who loves to challenge their brain but also craves a creative outlet that allows them to use the artistic and inventive side too. Featuring over 120 fantastic puzzles, mazes, dot to dots, crosswords, spot the difference, hanjie, sudoku and more, as well as colouring pages, The Adult Activity Book truly lives up to its name and presents a variety of puzzles and activities that will help boost your brain power.