Joyce Kohfeldt Books

Multi-purpose, multi-level resource for use in K-2 classrooms or in other special needs settings such as Title 1 classes or ESL groups. Supplement to the Working with Words block of the Four-Blocks...

Tongue Twisters To Teach Phonemic Awareness And Phonics Grades 13

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Creating comics with story strips

By Joyce Kohfeldt

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Language Arts Activities Using Colorful Cut Outs x2122 Grade 1

By Joyce Kohfeldt

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Math Activities Using Colorful Cut Outs Grade 2

By Joyce Kohfeldt

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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.