Brain Games Picture Puzzles #7: How Many Differences Can You Find? tests your powers of observation. From the popular Brain Games series, the book is packed with fun, challenging, and addicting picture puzzles. Two or more pictures are seemingly identical, but subtle changes have been made to one of the pictures it s up to you to find what has been altered.The full-color picture puzzles feature a variety of everyday scenes, such as landscapes, office scenes, foods, shops, buildings, and transportation venues. The puzzles are organized into four levels of difficulty. As you move through the book, the number of changes increases, the differences become subtler, and the pictures are more densely detailed. You can check your work on each puzzle with the answer key located at the back of the book. The original picture is presented in black and white, with the changes circled and numbered.Brain Games Picture Puzzles #7: How Many Differences Can You Find? is spiral-bound and easy to use, regardless of whether you re at home, on public transportation, in a long security line at the airport, or at the beach. Use it any time to exercise your brain and hone your observational skills. The book features: More than 140 picture puzzles Beautifully photographed scenes Solutions for each puzzle A handy format that makes the book ideal for taking with you