In his new book, The Puzzler, journalist A.J. Jacobs harnesses life-enhancing power of puzzles, including jigsaws, crosswords, sudoku, logic problems, word plays and cryptograms.
Inventor of Jigsaw Puzzle Dies | History Today historytoday.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from historytoday.com Daily Mail and Mail on Sunday newspapers.