Erin E. MacDonald Books

Ian Rankin

By Elizabeth Foxwell, Erin E. MacDonald

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Robert Downey Jr. from Brat to Icon

By Erin E. MacDonald

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"Robert Downey Jr. may be best known as Iron Man, but his career as an actor stretches back to the 1980s and features several Oscar-quality roles. He has worked with a wide range of innovative dire...

Ed McBain Evan Hunter

By Erin E. MacDonald

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"Evan Hunter published over 120 novels under pseudonymns, wrote several teleplays and screenplays (The Birds, The Blackboard Jungle). This comprehensive companion provides detailed information abou...

Outlander and Lord John As Crime Fiction

By Erin E. MacDonald

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Robert Downey Jr. from Brat to Icon

By Erin E. MacDonald

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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.