Daniel Callahan Books

Setting limits

By Daniel Callahan

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What kind of life

By Daniel Callahan

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The troubled dream of life

By Daniel Callahan

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Why, despite so many reform efforts, has death remained acutely troubling in our common life? Why has modern medicine remained so ambivalent, so torn, in its stance toward death? And most important...

What Kind of Life

By Daniel Callahan

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The Troubled Dream of Life

By Daniel Callaha

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False hopes

By Daniel Callahan

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Taming the Beloved Beast

By Daniel Callahan

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The Catholic case for contraception

By Daniel Callahan

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Medicine and the market

By Daniel Callahan

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False Hopes

By Daniel Callahan

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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.