Cathy Hapka Books

Disney s 5 minute bedtime stories

By Cathy Hapka

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Disney s Family Story Collection Volume 2 Disney Family Story Collections

By Cathy Hapka

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"Zach's neighbors just had a new baby--and now they're threatening to take their cat, Hallie, to the animal shelter. The kids have been volunteering there since starting the Pet Rescue Club, and th...

No time for Hallie

By Cathy Hapka

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Too big to run

By Cathy Hapka

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"Zach's mom has a new patient--a giant dog named Maxi who has been helping her owner train for a marathon. Maxi's knees can't handle all that running and now she needs an operation. Time for the ki...

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.