This is the fourth book in the Brain Games: Picture Puzzles series. 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. The book is spiral-bound and handy to use, no matter whether you are at home, on public transportation, in a long security line at the airport, or relaxing at poolside or on the beach. Take along Brain Games Picture Puzzles #4 wherever you go 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. All books in the series contain unique content.