Luther F. Sies Books

The communication contract

By Susan B. Goldstein

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Voice and voice disorders

By Luther F. Sies

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Encyclopedia of American radio, 1920-1960

By Luther F. Sies

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Encyclopedia of American Radio 1920 1960

By Luther F. Sies

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"This work is the source for scholars of communication, social and cultural history and the popular arts, as well as devoted fans of radio history. New entries include information on such topics as...

The Encyclopedia of Women in Radio 1920 1960

By Luther F. Sies, Leora M. Sies

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Encyclopedia of American Radio

By Luther F. Sies

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Aphasia Theory and Therapy

By Sies

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Aphasia theory and therapy

By Hildred Schuell

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Encyclopedia of American Radio 1920 1960 2d Ed

By Luther F. Sies

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The Encyclopedia of Women in Radio, 1920-1960

By Luther F. Sies, Leora M. Sies

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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.