Matthew T. Rosenberg Books

The Handy Geography Answer Book

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The Geography Bee Complete Preparation Handbook

By Matthew T. Rosenberg, Jennifer E. Rosenberg

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The Ultimate Geography Bee Resource Guide Geography Bees are hot, with millions of fourth through eighth graders competing in National Geographic—sponsored Bees every year! This indispensab...

The Handy Geography Answer Book Handy Answer Books

By Matthew T. Rosenberg, Mathew Todd Rosenberg

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The handy geography answer book

By Matthew T. Rosenberg

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Punisher Legacy Vol. 1

By Guiu Vilanova, Matthew T. Rosenberg

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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.