Joan Holub Books

Why Do Rabbits Hop?
Why Do Rabbits Hop?

By Joan Holub

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Questions and answers present information about the behavior and characteristics of rabbits, guinea pigs, hamsters, and gerbils and their interaction with humans.

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Why Do Cats Meow Why Do Dogs Bark Flip Book
Kwanzaa kids
Kwanzaa kids

By Joan Holub

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Dragon Dance
Dragon Dance

By Joan Holub

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A great introduction to the customs of Lunar New Year. This interactive lift-the-flap book is perfect for parents and early readers to enjoy together!It's Lunar New Year and there are so many fun t...

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Apples and Honey
Apples and Honey

By Joan Holub

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Groundhog Weather School: Fun Facts about Weather and Groundhogs
Cooties from Outer Space
Cooties from Outer Space

By Joan Holub

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Dig, Scoop, Ka-boom!
Dig, Scoop, Ka-boom!

By Joan Holub

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A construction site crew and their trucks are busy at work in this rhyming Step 1 early reader! Dump truck, mixer, and digger, and crane--all the vehicles children love to play with are working har...

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Dig, scoop, ka-boom!
Dig, scoop, ka-boom!

By Joan Holub

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"In rhymed text a group of young friends playing in a sandbox take on the roles of various construction vehicles"-- In rhymed text, a group of young friends playing in a sandbox take on the roles...

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Happy Monster Day!
Happy Monster Day!

By Joan Holub

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If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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