William C. Gordon Books

The ugly dwarf

By William C. Gordon

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Fractured lives

By William C. Gordon

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"The body of a well-dressed young man is found in San Francisco's City Hall. Killed in the middle of the night by multiple gunshots from an unusual foreign pistol, the mystery is further compounded...

The halls of power

By William C. Gordon

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"Fifth in a series of noir mysteries featuring newspaper reporter Samuel Hamilton, The Halls of Power explores corruption at the top of the money chain in San Francisco in the early 1960s. The work...

Unfinished

By William C. Gordon

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"Sixth in a series of noir mysteries featuring [San Francisco] newspaper reporter Samuel Hamilton, Unfinished confronts the question, how much hurt can be repaired when betrayal, kidnapping, and vi...

Caso abierto

By William C. Gordon

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El rey de los bajos fondos

By Gordon William C.

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Vidas rotas

By William C. Gordon

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El rey de los bajos fondos

By Gordon William C.

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Las esferas del poder

By Gordon William C.

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Las esferas del poder

By Gordon William C.

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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.