Doris Metcalf Books

Thinking Upside Down

By Doris Metcalf

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Rocks And Minerals

By Peg Marson, Doris Metcalf, Ron Marson, Conceived And Written By Ron Marson

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These open-ended task cards encourage older students to think and work like scientists. Task Cards measure 4 by 6 inches. The limited size of each card leaves less room to tell students exactly wha...

La Conscience Minoritaire Chez Gabrielle Roy

By Doris Metcalf

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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.