John Dellinger Books

The Substitute Teaching Survival Guide, Grades K-5: Emergency Lesson Plans And Essential Advice

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the Substitute Teaching Survival Guide Is Filled With Helpful Suggestions And Tips For Maintaining Order In The Classroom. The Book Includes 144 Ready-to-use Emergency Lesson Plans For Grades K¾5 A...

The Substitute Teaching Survival Guide Grades 6 12 Emergency Lesson Plans and Essential Advice J B Ed Survival Guides

By John Dellinger

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Quigly s Dilemma

By John Dellinger

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Homecoming to Murder

By John Dellinger

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Dinosaur Tracks and Murder

By John Dellinger

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Substitute Teaching Survival Guide Grades K 5

By John Dellinger

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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.