Devra Newberger Speregen Books

When Lara gives Stepahnie a study sheet for social studies class, Stepanie doesn't know that the sheet is actually a stolen copy of the test. Then Lara tries to blackmail Stephanie into stealing o...

Full House Sisters 1 Two on the Town

By Devra Speregen, Devra Newberger Speregen

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Stephanie and Michelle are in New York City with their Dad. After being told to stick together, they go their separate ways only to get lost trying to find each other.

The big fix up mix up

By Jeanne Stephens, Devra Speregen, Stephens Jeanne., Devra Newberger Speregen

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Joey's promised to get her message on the air. But he's feeling blue because he has no valentine of his own. He might even cancel the show -- and then Steph's new heartthrob will never know how she...

Wish upon a VCR

By Hastings Brook Pseud., 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.