Deborah Heiligman Books

Snow doesn't stop the Golden Retriever, Tinka. She runs and plays and sleds with her boy. But when her friend Millie the beagle shows up, off races Tinka. And she gets lost--till her boy finally re...

Vincent and Theo

By Deborah Heiligman

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This incredible story about brotherly love and the famous artist who was shaped by it is a meticulously researched account of the Van Gogh brothers' intertwined lives.

Bebes

By Deborah Heiligman

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Describes how babies look and act and how they change as they grow. Kids get a great introduction to human growth and development as they observe a baby's antics through the eyes of an older sister...

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.