Where's Wally?

Where's Wally? (called Where's Waldo? in North America) is a British series of children's puzzle books created by English illustrator Martin Handford. The books consist of a series of detailed double-page spread illustrations depicting dozens or more people doing a variety of amusing things at a given location. Readers are challenged to find a character named Wally hidden in the group.

Link taken from: https://en.wikipedia.org/wiki/Where%27s_Wally%3F