Demetra Tsavaris Lecourezos Books

Young world travelers and the magical crystal globe

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"A group of friends from a small Florida town set off on an adventure to New York, using their imaginations and Mrs. Eva's Magic Crystal Globe"--

Ready Set OPA Young World Travelers

By Demetra Tsavaris Lecourezos

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Globe Within a Globe

By Demetra Tsavaris Lecourezos, Marina Saumell, Katerina Tsavaris

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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.