Roberta Jaffe Books

The growing classroom

By Roberta Jaffe

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Growing Classroom

By Roberta Jaffe

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The growing classroom

By Roberta Jaffe

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"The Growing Classroom provides activities for teaching science, environmental awareness, and nutrition in an outdoor living laboratory as well as in a classroom setting. The combination of direct...

How Things Work Student Lab Book Grade 3

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Soil Changes Life Lab Science Change Over Time Grade 5 module 6

By Curriculum Director Robert Jaffe

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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.