Julie Aigner Clark Books

Baby Einstein What Floats

By Julie Aigner Clark

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The world around me.

By Julie Aigner Clark

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Rhyming text and illustrations introduce a variety of marine creatures on a single sheet that can be unfolded to lay on the floor, or the ends interlocked to form a corral.

Baby Einstein

By Julie Aigner Clark

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Baby Einstein

By Julie Aigner Clark

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Baby Einstein

By Julie Aigner Clark

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Baby Einstein

By Julie Aigner Clark

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Baby Einstein

By Julie Aigner Clark, Susan Ring

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Children explore the concepts of big and small in the world around them, from big round pancakes to tiny little seashells.

See how I feel

By Julie Aigner Clark

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Readers can join the menagerie of animals as they search their faces for different feelings in this board book that comes with a mirror on every spread.

Baby Einstein

By Julie Aigner Clark

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Introduces your child to rhyming words.

Baby Einstein

By Julie Aigner Clark

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

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.