Michael Jecks Books

City of Fiends

By Michael Jecks

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For The Love of Old Bones

By Michael Jecks

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A Murder Too Soon

By Michael Jecks

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The Merchant s Partner

By Michael Jecks

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King s gold

By Michael Jecks

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"As the year 1326 draws to a close, London is in flames. King Edward II is held prisoner, and the mercenaries and rebels led by the vengeful Queen Isabella and her lover, Sir Roger Mortimer, are in...

King s Gold

By Michael Jecks

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King s Gold

By Michael Jecks

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Crime on the Move

By Martin Edwards

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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.