Tim Symonds Books

Sherlock Holmes and the case of the Bulgarian codex

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It's the year 1900. Sherlock Holmes and Dr. Watson receive an urgent commission from the Prince Regnant of Bulgaria to come to Sofia. The Codex Zographensis, the most ancient and most sacred manusc...

Sherlock Holmes and the case of the Bulgarian codex

By Tim Symonds

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Sherlock Holmes and the case of the Bulgarian codex

By Tim Symonds

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Sherlock Holmes

By Jacquelynn Morris, Roger Riccard, John Linwood Grant, Craig Janacek, Mark Mower, David Marcum, Thomas Fortenberry, Craig Stephen Copland, Kevin P. Thornton, Tim Symonds

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Sherlock Holmes And The Dead Boer At Scotney Castle

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Sherlock Holmes and The Mystery of Einsteins Daughter

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Sherlock Holmes and the sword of Osman

By Tim Symonds

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Sherlock Holmes and the sword of Osman

By Tim Symonds

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Sherlock Holmes and the sword of Osman

By Tim Symonds

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Sherlock Holmes and The Nine Dragon Sigil

By Tim Symonds

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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.