How many Dirty Bertie books are there?

There are 3 books in the Dirty Bertie series by Alan MacDonald, for ages 3-9.

Dirty Bertie Books in Order

3 books · Ages 3–9 · Chapter Books

Dirty Bertie is a 3-book series for ages 3–9 by Alan MacDonald. Each book stands alone — start anywhere.

Start anywhere — each book stands alone.

That said, Germs! and Dirty Bertie are great first picks.

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