Wallace David Books

Geoffrey Chaucer

By Wallace David

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Strong women

By Wallace David

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Chaucerian polity

By Wallace David

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Chaucer's encounters with the great Trecento authors - Dante, Boccaccio, and Petrarch - facilitate the testing and dismantling of time-honored terms such as medieval, Renaissance, and humanism. The...

Chaucer and the early writings of Boccaccio

By Wallace David

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Carnet de Notes Johnny Hallyday

By Wallace David

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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.