How many Rex books are there?

There are 2 books in the Rex series by Molly Idle, for ages 3-7.

Rex Books in Order

2 books · Ages 3–7 · Chapter Books

Rex is a 2-book series for ages 3–7 by Molly Idle. Each book stands alone — start anywhere.

Start anywhere — each book stands alone.

That said, Sea Rex and Tea Rex are great first picks.

No particular order needed — browse and pick what catches your eye.