How many What Is a...? books are there?

There are 3 books in the What Is a...? series by Lola M. Schaefer, for ages 3-7.

What Is a...? Books in Order

3 books · Ages 3–7 · Chapter Books

What Is a...? is a 3-book series for ages 3–7 by Lola M. Schaefer. Each book stands alone — start anywhere.

Start anywhere — each book stands alone.

That said, Corals and What Is a Bird? are great first picks.

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