Thomas E. Reimer Books

Mulligan'S Brigade

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Step back into 19th century Chicago and experience the life of Lincoln and the Civil War as told by characters living at that time. While Mulligan's Brigade is historical fiction, authentic chara...

Four Men at a Table

By Thomas Reimer

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Death of the King

By Thomas Reimer

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Wild Onion

By Thomas Reimer

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Pitchfork Murders

By Thomas Reimer

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Know Nothings

By Thomas Reimer

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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.