Barbara S. Shearer Books

Finding the source

By Benjamin F. Shearer

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Periodical literature on United States cities

By Barbara Smith Shearer

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Finding the source of medical information

By Barbara Smith Shearer

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Title listing of 447 medical reference titles and textbooks considered as a core collection. Accompanying thesaurus includes UF (used for), BT (broader term), NT (narrower term), and RT (related te...

Notable Women in the Life Sciences

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Notable Women in the Physical Sciences: A Biographical Dictionary

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This volume features substantive biographical essays on 96 world and American women scientists who have made significant contributions to the physical sciences from antiquity to the present. The es...

State Names, Seals, Flags, and Symbols: A Historical Guide, 3rd Edition

By Benjamin F. Shearer, Barbara S. Shearer

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State Names Seals Flags and Symbols

By Benjamin F. Shearer

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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.