Jenna Glatzer Books

Celine Dion

By Jenna Glatzer

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Make a real living as a freelance writer

By Jenna Glatzer

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Native American festivals and ceremonies

By Jenna Glatzer

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No More Vodka in My Orange Juice

By Justin Daniels, Jenna Glatzer

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My Stolen Son

By Susan Markowitz, Jenna Glatzer

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The true story of the shocking crime behind the hit movie Alpha Dog One week after fifteen-year-old Nick Markowitz vanished, his mother received the news: Nick's body had been found in a shallow...

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.