2 books · Ages 8–12 · Chapter Books
The Justice League is a 2-book series for ages 8–12 by Brandon T. Snider. Each book stands alone — start anywhere.
Start anywhere — each book stands alone.
That said, Starro and the Cyberspore and Gorilla Grodd and the Primate Protocol are great first picks.
No particular order needed — browse and pick what catches your eye.