George Alexopoulos Books

Go with Grace

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Grace, a bedridden girl with no reason to live, is visited one night by a mysterious boy who invites her to leave her room. As they journey together to strange and wondrous cities, it slowly become...

Guide to Assessment Scales in Major Depressive Disorder

By Carmen Moreno, Hans Jurgen Moller, George Alexopoulos, Siegfried Kasper

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Guide to Assessment Scales in Major Depressive Disorder

By Carmen Moreno, Hans Jurgen Moller, George Alexopoulos, Siegfried Kasper

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Goofberry Pie

By George Alexopoulos

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Goofberry Pie

By George Alexopoulos

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Go with Grace

By George Alexopoulos

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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.