The Ultimate Book of Mixed Puzzles: More than 450 Puzzles for Adults Including Word Searches, Crosswords, Sudoku, Mazes and More! (Part of the Brain Busters Puzzle Collection) Parragon Books
100 Kakuro Puzzle Games: A game of logical deduction and reasoning using math and numbers to find the solutions. Barron's, Books
Brilliant Brain Teaser Puzzles for Adults: 101 Games to Sharpen the Mind (Fox Chapel Publishing) Brain Games Book – Easy, Medium, and Hard Memory Activities, Word Puzzles, Logic Problems, and More Angels Navarro