Guillaume Prevost Books

The Book of Time

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Sam Faulkner travels back in time to medieval Ireland, ancient Egypt and Renaissance Bruges in search of his missing father.

The Circle Of Gold

By Guillaume Prevost

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Fourteen-year-old Sam Faulkner journeys through time to ancient China, Renaissance Rome, and into the future to rescue his friend Alicia and prevent the death of this mother.

The circle of gold

By Guillaume Prevost

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Fourteen-year-old Sam Faulkner journeys through time to ancient China, Renaissance Rome, and into the future to rescue his friend Alicia and prevent the death of this mother.

Book Of Time

By Guillaume Prevost

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Book Of Time

By Guillaume Prevost

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The Book of Time With Bonus Features

By Guillaume Prevost

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The Book of Time

By Guillaume Prevost

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Sam's father is missing, and the only clues are a mysterious statue, coin and book. But when Sam slips the coin into the statue, he's swept back in time - to Scotland in 800 AD. It's the first step...

Gate of Days

By Guillaume Prevost

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The Book of Time

By Holter Graham, Guillaume Prevost

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Histoire

By Pierre Grosser, Pierre Ramognino, Guillaume Prevost

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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.