Mr. Lemoncello's Library Box set includes paperback books 1-4 of the series. This series is a NYT best-selling series for kids written by Chris Grabenstein. Recommended ages 8-12. Books show some wear on cover and binding (as seen in pictures). No rips, tears, or marks on pages inside. Book 1: Escape from Mr. Lemoncello's Library Book 2: Mr. Lemoncello's Library Olympics Book 3: Mr. Lemoncello's Great Library Race Book 4: Mr. Lemoncello's All-Star Breakout Game