How long will it take you to finish all the puzzles? Inspiring, beautiful and creative. These urban artworks collected for your enjoyment. Study the pictures to spot the differences.All images are related to graffiti street art with devious changes. All color images with changes that you'll love searching for. Great book for relaxation for yourself or as a gift.50 graffiti imagesMost images are medium to hard difficultyTwo images per pagePrinted on 8.5 x 11 paperEach puzzle has 5 differences to findAnswers are in the back of the book