Phillips, Charles Books

The complete illustrated history of knights the golden age of chivalry

By Phillips Charles

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Brazil Fiesta

By Charles Phillips

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The illustrated history of the Aztecs Maya

By Phillips Charles

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The Illustrated History Of The Popes: An Authoritative Guide To The Lives And Works Of The Popes Of The Catholic Church, With 450 Images

By Phillips, Charles, Charles Phillips

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For two thousand years, the pope has been the acknowledged head of the Roman Catholic Church. As the direct successor of St Peter, he holds a unique position, ruling over millions of Catholics worl...

The Illustrated History of Knights The Golden Age of Chivalry

By Charles Phillips

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Sweden Charles Phillips.

By Charles Phillips

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The complete illustrated history of knights crusades

By Phillips Charles

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"A fascinating and detailed overview of the life of a medieval knight, including his noble origins, rigorous training, life as a mounted warrior and feudal lord, courtly romances and leisure pursui...

Brain Builder Numbers

By Charles Phillips

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The medieval castle

By Phillips Charles

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"Following the remarkable work being done at Guédelon, where a medieval castle is being built using only the tools and techniques of the 13th century, this book examines every aspect of raising the...

Color for life

By Phillips Charles

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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.