Where's Waldo (known as Where's Wally? outside North America) is a series of children's puzzle books created by English illustrator Martin Handford. The books feature detailed double-page illustrations filled with dozens or more people in various amusing scenes, where readers are challenged to find a character named Waldo (Wally), who is identified by his red-and-white-striped shirt, bobble hat, and glasses
. The first book was published on June 25, 1987. The illustrations depict Waldo in various locations, including real places, different time periods, and fantasy worlds. The challenge is made difficult by the crowded and complex scenes, often with red herrings that mimic Waldo's distinctive clothing
. Besides the books, the franchise has expanded into two animated TV series (1991 and 2019), video games, and other media. There have also been real-life events where large groups of people dress up as Waldo to set world records
. In summary, Waldo is "hidden" in crowded, detailed illustrations throughout the Where's Waldo? books and related media, and the main activity is to find him among many other characters and objects
