Hele Mai Haav Books

Databases and Information Systems

By Tarmo Robal, Raimundas Matulevicius, Hele Mai Haav, Jaan Penjam

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Databases and Information Systems II

By Hele Mai Haav

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The rapid growth of the Internet has dramatically changed the capabilities of information systems (IS) and the role of database management. They have become vital components of successful inter-net...

Databases and Information Systems II

By Hele Mai Haav

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Advances in Databases and Information Systems

By Ahto Kalja, Johann Eder, Hele Mai Haav, Jaan Penjam

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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.