Raina Gavrilova Books

Bulgarian urban culture in the eighteenth and nineteenth centuries

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The fascinating process of transition from tradition to modernity in Bulgaria during the so-called National Revival Period took place primarily on the urban scene. This book argues the hypothesis t...

Bulgaria

By Valeria Fol, Nikolai Ovcharov, Borislav Gavriolv, Raina Gavrilova

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Koleloto na zhivota

By Raina Gavrilova

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Vekut na bulgarskoto dukhovno vuzrazhdane

By Raina Gavrilova

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Kum istoriiata na grazhdanskiia sektor v Bulgariia

By Raina Gavrilova

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Semeinata stsena

By Raina Gavrilova

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Istoriia i tsivilizatsiia za 5. klas

By Raina Gavrilova

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Istoriia i tsivilizatsiia za 6. klas

By Raina Gavrilova

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100 neshta koito triabva da znaem za traditsiite na bulgarite

By Raina Gavrilova

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Granitsi na grazhdanstvoto

By Raina Gavrilova, Krasimira Daskalova

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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.