Todd C. Hanlin Books

Murder at the Western wall

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"On a recent summer day, CNN reporter Ari Schwartz is assassinated in the shadow of Jerusalem's Western Wall. Who would kill someone at such a holy site? The police have no clues, but Nadja Assad,...

Austria As It Is

By Todd C. Hanlin, Charles Sealsfield

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Franz Kafka

By Todd C. Hanlin

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"For centuries, Vienna had been the imperial residence and capital of the great multi-lingual, multi-national Habsburg Empire, and thus a magnet for the accumulation of power, prestige, wealth, and...

Five plays

By Gerald Szyszkowitz

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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.