Gavin Menzies Books

The Lost Empire of Atlantis

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Who Discovered America?: The Untold History of the Peopling of the Americas

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Combining in-depth research with an adventurer's spirit to present a radical rethinking and new revelations relating to the Beringia theory of how humans discovered, explored, and settled the Ameri...

Who Discovered America the Untold History of the Peopling of The

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1421

By Gavin Menzies

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1421

By Gavin Menzies

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1421

By Gavin Menzies

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"On 8 March 1421 the largest fleet the world had ever seen sailed from its base in China. The ships, huge junks nearly five hundred feet long and built from the finest teak, were under the command...

1421

By Gavin Menzies

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1421 El ano que China descubrio el mundo Huellas Perdidas

By Gavin Menzies

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1421

By Gavin Menzies

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1434

By Simon Vance, Gavin Menzies

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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.