# One-Osaurus, Two-Osaurus - Hardcover

by **Kim Norman** (Author), **Pierre Collet-Derby** (Illustrator)

**Part counting game, part dinosaur celebration, this energetic romp is a numbers concept book for the ages.**

_One-osaurus, two-osaurus, three-osaurus, four_

Look there, in a child's bedroom, where some prehistoric pals are gathered in a counting game. Nine dinosaurs are playing a sing-song rendition of hide-and-seek--but something isn't adding up. Where is number ten? _Stomp, stomp, stomp_ _CHOMP, CHOMP, CHOMP_ Ready or not, here he comes, and he sounds . . . big With big, bold numerals, an array of dinosaurs in comical poses, and a humorous twist at the end, this tribute to a child's imagination makes learning numbers a gigantic treat.

### Author Biography

**Kim Norman** is an artist, actress, and singer as well as an author of many children's books, including _Give Me Back My Bones!_, _Puddle Pug_, and _The Bot That Scott Built._ Calling herself a "bedtime book booster," Kim Norman visits schools around the country, sharing her love of books. She lives in Virginia.

**Pierre Collet-Derby** is an author and illustrator of numerous children's books. He worked for many years in the animation and video game industries before devoting his days to drawing, writing, and strumming his ukulele. Born and raised in France, where he studied animation, Pierre Collet-Derby now lives in Canada.

**Number of Pages:** 32

**Dimensions:** 0.4 x 9.3 x 10.25 IN

**Illustrated:** Yes

**Publication Date:** March 23, 2021

**Accelerated Reader:**

**Quiz Name:** One-Osaurus, Two-Osaurus

**Interest Level:** Lower Grades, K-3

**Reading Level:** 1.3

**Point Value:** 0.5

## Details

- **Price:** 17.99 USD
- **Vendor:** Books by splitShops
- **Type:** Books
- **Tags:** Books by splitShops, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 17.99 USD | In stock |

## Images

- One-Osaurus, Two-Osaurus - Hardcover

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> Updated: 2026-07-23