Graham Hancock Books

Talisman: Sacred Cities, Secret Faith

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A talisman is an object with meaning. It is a potent symbol or icon that can fire the imagination and emotions of men and women anywhere, anytime. It can be a small amulet, a ring, a flag, a statue...

The Sign And The Seal: Quest for the Lost Ark of the Covenant

By Graham Hancock

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Keeper Of Genesis: A Quest for the Hidden Legacy of Mankind

By Graham Hancock, Robert Bauval

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Supernatural: Meetings with the Ancient Teachers of Mankind

By Graham Hancock

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The Mars Mystery: A Warning From History That Could Save Life On Earth

By Graham Hancock, Robert Bauval, John Grigsby

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Talisman

By Graham Hancock, Robert Bauval

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Underworld: Flooded Kingdoms of the Ice Age

By Graham Hancock

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Lords of Poverty

By Graham Hancock

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Journey Thru Pakistan

By Mohamed Amin

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The Sign And The Seal

By Graham Hancock

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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.