Karen Gundersheimer Books

Happy Winter

By Karen Gundersheimer

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Two sisters find very familiar activities are transformed by the wonder of snowy days.

A B C, say with me

By Karen Gundersheimer

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A teeny girl cavorts through the alphabet performing such activities as asking an ant, balancing on a butterfly, and cleaning a cup.

A B C, Say with Me

By Karen Gundersheim

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1 2 3, play with me

By Karen Gundersheimer

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With sister Minna's help, Memo the mouse counts up all his toys, backwards and forwards.

1 2 3, play with me

By Karen Gundersheimer

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With sister Minna's help, Memo the mouse counts up all his toys, backwards and forwards.

Colors to know

By Karen Gundersheimer

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A teeny girl learns her colors as she frolics among brightly colored everyday objects.

A Special Trade

By Sally Wittman

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As the years go by a little girl is able to help an old man as he helped her when she was very young.

Happy Winter

By Karen Gundersheimer

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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.