Thomas Bruce Wheeler Books

Finding Sherlock s London

By Thomas Bruce Wheeler

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London Secrets

By Thomas Bruce Wheeler

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The New Finding Sherlock s London

By Thomas Bruce Wheeler

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“Of the dozen or so guides to Holmesian London, there are two that I recommend to visitors: Arthur Alexander’s Hot on the Scent and Tom Wheeler’s Finding Sherlock’s London. Nothing stands still for...

GPS Guide to the London of Sherlock Holmes

By Thomas Wheeler

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The London of Sherlock Holmes

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This book identifies over 400 sites in Greater London associated with Sherlock Holmes. In addition to placing the sites in adventure context and grouping them by underground station, the book has t...

Mapped London of Sherlock Holmes

By Thomas Bruce Wheeler

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London of Sherlock Holmes

By Thomas Bruce Wheeler

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London of Sherlock Holmes

By Thomas Bruce Wheeler

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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.