Deborah Heiligman Books

December 25th is a day of peace and festivity, the culmination of a season of worldwide goodwill. Carol singers give voice to the joyful spirit, trees are decorated, and gifts exchanged between fam...

Holidays Around The World Celebrate Christmas

By Deborah Heiligman

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The Trailblazing Life of Daniel Boone and How Early Americans Took to the Road

By Cheryl Harness

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Daniel Boone's story is every young adventurer's fantasy: A childhood in Pennsylvania spent hunting on lands shared with Native Americans; a coming-of-age fighting in the French and Indian War; and...

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.