Two or more pictures that seemingly are identical are presented on the same page, but subtle changes have been made to one of the pictures. It's up to you to find what has been altered.The book is divided into four sections of pictures puzzles, each progressively more difficult.Can't find all the changes? No problem solutions to all the puzzles are provided in the final section of the book.Spiral-bound, 192 pages.Stimulate your mind a few minutes at a time.The Brain Games Picture Puzzles series was developed to challenge your powers of observation and stimulate your ability to focus and concentrate. This is the fifth book in the popular series. All books in the series contain unique content.