Devra Speregen Books

Several tales of terror featuring young people in sinister and scary situations---go into a bead shop with a secret curse, encounter strange happenings in a hospital, or play an unreleased version...

Ace Ventura Pet Detective

By Devra Speregen, Devra Newberger Speregen

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The Miss O Friends Book of Fabulous Fun

By Devra Speregen

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Miss O Friends Caught in the Net Miss O Friends

By Devra Speregen

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When Juliette starts an online zine for her school, she dives right in with her usual enthusiasm. It's a huge hit! E-mails are pouring in. The best ones are smart, funny, anonymous....Who could be...

Yoni Netanyahu Jps Young Biography Series.

By Devra Newberger Speregen

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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.