Charles E. Matthews Books

The Oscar Encyclopedia

By Charles E. Matthews, Charles Matthews

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An encyclopedic listing of more than 2,400 feature films in which a performer, director, designer, or composer was nominated for or received an Academy Award offers detailed and insightful synopses...

Oscar A To Z

By Charles Mathews, Charles E. Matthews

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Ray'S Higher Arithmetic. The Principles Of Arithmetic, Analyzed And Practically Applied. Edited

By Charles E. Matthews, Joseph 1807-1855 Ray

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The Principles Of Arithmetic: Analyzed And Practically Applied : For Advanced Students

By Charles E. Matthews, Joseph Ray

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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.