"Where's Wally?" is a popular series of children's books created by British illustrator Martin Handford. The books feature detailed, colorful illustrations filled with numerous characters and objects, where readers are challenged to find the character Wally, who is known for his distinctive red-and-white striped shirt, glasses, and a bobble hat. Each page presents a different scene, such as a beach or a busy city, packed with hidden details and distractions. The series encourages observation skills and attention to detail, making it a fun and engaging activity for children and adults alike. The character Wally is known as Waldo in the United States.