Book Series · 1 Book

On the Job Books

What Hat Is That?
What Hat Is That?
What Hat Is That?
What Hat Is That?
What Hat Is That?
What Hat Is That?
What Hat Is That?
Where the story begins

First Book in the Series

What Hat Is That?
Sale price
$1248
Book #1 · Board Book · Ages 2–5 · 2025

What Hat Is That?

By Nichole Mara, Andrew Kolb (Illustrator)

Guess the job with Grover using hats as clues in this interactive adventure!

16 pages
$12.99Save 4%
Board Book
Summary: Join Grover on Sesame Street for a playful guessing game! Discover six exciting jobs as you help Grover identify each one using hats as clues. Is it a magician's hat or an astronaut's helmet? Lift the gatefold to reveal the answer and explore the colorful world of Sesame Street. Perfect for curious toddlers, this interactive board book promises fun and learning with every turn of the page. Can you guess all the jobs?
The complete set

On the Job Series

1 book · Published 2025

Sale price
$1248

What Hat Is That?

Board Book · Ages 2–5 · 2025

Guess the job with Grover using hats as clues in this interactive adventure!

Good to know

Common Questions

How many books are in the On the Job series?

There is one On the Job book so far: What Hat Is That?.

What ages are the On the Job books best for?

The series is best for ages 2–5, based on the age ranges of the individual books.

The people

The Creatives Behind the Book

The people who bring On the Job to life.

Keep exploring

Similar Series