Michael Robertson Books

The Baker Street jurors

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"Michael Robertson has delighted mystery readers and Sherlock Holmes aficionados everywhere with his charming and innovative Baker Street mystery series, where brothers Reggie and Nigel Heath are c...

A Baker Street Wedding

By Michael Robertson

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Moriarty Returns a Letter

By Michael Robertson

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The Baker Street letters

By Michael Robertson

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The brothers of Baker Street

By Michael Robertson

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Refusing to Quit

By Michael Robertson

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Refusing to Quit

By Michael Robertson

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The Baker Street translation

By Michael Robertson

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Gone and Back

By Mike Robertson

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The Baker Street Letters

By Michael Robertson, Simon Vance

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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.