Jane Clark Brown Books

Marvin's Best Christmas Present Ever

By Jane Clark Brown, Katherine Paterson

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The Smallest Cow in the World

By Jane Clark Brown, Katherine Paterson

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Whonk, and whonk again

By Jane Clark Brown

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When Phoebe sets out to discover the source of the strange "whonk" noise she meets an assortment of unusual characters that help her in her search.

George Washington's ghost

By Jane Clark Brown

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Celinda, the smallest member of a traveling family of puppeteers, is determined to find an important part to play when the troupe sets out to earn a living in the early days of the new United States.

Whonk Whonk Again

By Jane Clark Brown

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Marvin's Best Christmas Present Ever

By Jane Clark Brown, Katherine Paterson

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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.