Books Brain Teaser Books Keep your brain super fit with this ingenious new collection. With 365 brain-training challenges to solve, this book will keep you on your toes & test your powers of deduction to the limit. Complete with various puzzle formats, such as battleships, jigsaw sudoku & pathfinders, these popular puzzles will keep you engrossed every day of the year. Product Information: •†ISBN:† 9781837711642 •†Author: Igloo Books •†Publisher:† Igloo Books •†Format:† Paperback •†Pages:† 400 •†Dimensions:†18.6 x 2.8 x 23.5 cm