August A. Imholtz Books

Germany's business leaders, 1400-1917

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The collection belonged to Rudolf Mosse (1843-1920), a successful businessman who founded the first major advertising agency in Germany and later became publisher of the influential Berliner Tagebl...

In Memoriam Charles Lutwidge Dodgson

By August A. Imholtz

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The Mad Gardener s Song

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Political pamphlets from the Indian subcontinent

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The Native Americans Reference Collection

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The Baltimore Bibliophiles at fifty 1954 2004

By Donald Farren, August A. Imholtz

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The Carrollian tales of Inspector Spectre

By Byron W. Sewell

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Charles Lutwidge Dodgson

By Charlie Lovett

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Alice Eats Wonderland

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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.