Top 20 Children's Book Series (for Grades 4-6)

This darkly comedic series follows a group of orphans who are always being shuffled from one dysfunctional foster home to another, while also being stalked by the sinister Count Olaf who is trying to steal the fortune left to them by their parents. Add to that a strange mystery with secret societies and a possible conspiracy surrounding their parents death, and you have an addictive series.

Dan and Amy Cahill are searching for thirty-nine clues scattered all over the world in order to meet a challenge in their grandmother's will. Readers learn a lot about history, with a variety of historical figures featuring prominently in the series.

Kids who can't get enough of these scary stories from R.L. Stine, that combine spooky chills combined with gross-out comedy.

This series has become the most popular book series of all time, and is one of the few children's books that has actually inspired children to challenge themselves to read something above their reading level. It follows Harry Potter, boy wizard, through his magical adventures at Hogwarts School of Witchcraft and Wizardry, as well as the surrounding magical world. Harry and his friends face many dangerous perils, as Harry gets closer and closer to his destiny: battling the most evil dark wizard the world has ever seen.

This five book series tells the fantastic story of twins Jared and Simon, along with their older sister Mallory, as they meet fairies and goblins and other magical creatures in their quest to save the world from an evil ogre.

Artemis Fowl is a teenage criminal mastermind who's not above breaking the law to meet his goals.

Very good!