Book Series · 4 Books

Penelope Rex Books

In order from We Don't Eat Our Classmates to Penelope Rex and the Problem with Pets.

The Penelope Rex series is a set of 4 picture books by Ryan T. Higgins, published between 2018 and 2024. Written for ages 3–8, most books run about 50 pages.

About the series

What's Penelope Rex About?

Four funny picture books about a young T. rex learning how to make friends, share her talents, care for pets, and handle school problems.

Where the story begins

First Book in the Series

Sale price

$1797

Book #1 · Picture Book · Ages 3–5 · 2018

We Don't Eat Our Classmates

By Ryan T. Higgins

A young T. rex named Penelope starts school and learns that it's not acceptable to eat her classmates.

40 pages· 429 words· Est. 4 min read-aloud

5.5/7 Bookroo

$18.99Save 5%

Hardcover

Summary: Penelope Rex is excited for her first day at school, but making friends is tricky when her classmates seem like tasty snacks. When the tables turn, Penelope learns a surprising lesson about friendship and food chains. Will she find her place among her peers, or will her appetite get the best of her?

In reading order

Penelope Rex Series

4 books · Published 2018–2024

#1 in Series

Sale price

$1797

We Don't Eat Our Classmates

Picture Book · Ages 3–5 · 2018

A young T. rex named Penelope starts school and learns that it's not acceptable to eat her classmates.

#2 in Series

Sale price

$1697

We Will Rock Our Classmates

Picture Book · Ages 4–8 · 2020

A young T. rex named Penelope wants to participate in her school's talent show, but she's worried that being a dinosaur will hold her back.

#3 in Series

Sale price

$1797

We Don't Lose Our Class Goldfish

Picture Book · Ages 4–8 · 2023

A young dinosaur named Penelope must take care of her class's pet goldfish, Walter, for the weekend.

#4 in Series

Sale price

$1797

Penelope Rex and the Problem with Pets

Picture Book · Ages 3–5 · 2024

A young dinosaur faces chaos with her new saber-toothed pet.

From the same world

In-Universe Books

1 book · Published 2025

Sale price

$958

Bundle Up, Penelope Rex!

Board Book · Ages 0–2 · 2025

A dinosaur and her pet cat prepare for snowy adventures, but will they succeed?

Good to know

Common Questions

How many books are in the Penelope Rex series?

There are 4 books in the Penelope Rex series. It began with We Don't Eat Our Classmates in 2018, and the newest book, Penelope Rex and the Problem with Pets, was published in 2024.

What order should you read the Penelope Rex books in?

Start with We Don't Eat Our Classmates and follow the series order — the books above are numbered #1 through #4.

What ages are the Penelope Rex books best for?

The series is best for ages 3–8, based on the age ranges of the individual books.

Which Penelope Rex book is the longest?

We Will Rock Our Classmates (Book #2) is the longest book in the series at 812 words (48 pages).

Which Penelope Rex book is the shortest?

We Don't Eat Our Classmates (Book #1) is the shortest at 429 words (40 pages).

The people

The Creative Behind the Books

The people who bring Penelope Rex to life.

Ryan T. Higgins

Author & Illustrator

Keep exploring

Similar Series

Penelope Rex Books

What's Penelope Rex About?

First Book in the Series

We Don't Eat Our Classmates

Penelope Rex Series

We Don't Eat Our Classmates

We Will Rock Our Classmates

We Don't Lose Our Class Goldfish

Penelope Rex and the Problem with Pets

In-Universe Books

Bundle Up, Penelope Rex!

Common Questions

How many books are in the Penelope Rex series?

What order should you read the Penelope Rex books in?

What ages are the Penelope Rex books best for?

Which Penelope Rex book is the longest?

Which Penelope Rex book is the shortest?

The Creative Behind the Books

Ryan T. Higgins

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