Helena Clare Pittman Books

Over 200,000 copies sold! Now with a newly refreshed design, this classic mathematical folktale tells the story of a clever farmer who outwits the Emperor of China and becomes the wealthiest man in...

Uncle Phil's diner

By Helena Clare Pittman

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Ruthie and her father play games and share memories to keep warm as they walk to Uncle Phil's diner on a cold Sunday morning.

Miss Hindy s Cats

By Helena Clare Pittman

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The Gift of the Willows

By Helena Clare Pittman

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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.