Jacklyn Williams Books

Gus the hedgehog wants to be sure that Santa Claus will remember him and what he wants for Christmas, but wearing huge antlers while waiting in line at Santa Land draws more attention than he wants.

Feliz cumpleanos Gus

By Jacklyn Williams

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Gus's mom sends him to karate camp for his birthday, but Gus and Beto have to put up with Billy when they get there.

Feliz Halloween Gus

By Jacklyn Williams

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In preparation for the Halloween parade, Gus must do two things--create the best costume and learn to march.

Make a New Friend Gus Gus the Hedgehog Gus the Hedgehog

By Jacklyn Williams

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Pick a Pet Gus Gus the Hedgehog Gus the Hedgehog

By Jacklyn Williams

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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.