Daniel Kalla Books

A hundred years ago, Dr. Evan McGrath established a hospital in the Pacific Northwest that would never turn away a patient in need. In the process, Evan lost the love of his life while making a pow...

Rising sun falling shadow

By Daniel Kalla

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Explores the lives of Dr. Franz Adler and his wife Sunny, who're forced in 1943 China to relocate to a one-square-kilometer called Shanghai Ghetto, where heat, hunger, and tropical diseases are con...

Rage Therapy

By Daniel Kalla

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Pandemic

By Daniel Kala

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Resistance Tom Doherty Associates Book

By Daniel Kalla

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Blood Lies

By Daniel Kalla

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Cold plague

By Daniel Kalla

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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.