As Waldo and his buddies look for everything from a lost key to a lost camera, the reader is invited to work a variety of activities, including spot-the-difference, mazes, memory games, word games, doodles, and tangled line teasers.

The reader follows Waldo as he travels through different time periods in history and must try to find him in the illustrations of some of the crowded events in which he participates.

When a Connecticut teenager inherits vast wealth and an eccentric estate from the richest man in Texas, she must also live with his surviving family and solve a series of puzzles to discover how she earned her inheritance.