The Brain Fitness Puzzle Book

​Solve over 144 puzzles, navigate around maps of London and the English countryside, search for hidden clues, and—most importantly—exercise your sharp intellect and keen perception skills, just as Sherlock Holmes would. Hours of fun and entertainment await you inside!

From the Wellcome Prize-winning author of It's All in Your Head

From Nancy Linde's bestselling puzzle series, this book features 440 all-new exercises to challenge—and improve—your brain’s long-term memory, working memory, processing speed, executive function, attention to detail, multitasking skills.

From Nancy Linde's bestselling puzzle series, this book features 440 all-new exercises to challenge—and improve—your brain’s long-term memory, working memory, processing speed, executive function, attention to detail, multitasking skills.