Khristo Kiuchukov Books

My name was Hussein

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Although they have kept their Islamic traditions living in their Bulgarian village for many generations, when an army takes over their village, a Muslim boy and his family are forced to take Christ...

Romani studies

By Khristo Kiuchukov, Encho Gerganov, Lukasz Kwadrans, William Templer, Ladislav Fizik

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Romany children and their preparation for literacy

By Khristo Kiuchukov

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Suvremenni idei i podkhodi za obuchenie po bulgarski ezik na detsa bilingvi v dvuezichna sreda

By Khristo Kiuchukov

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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.