Stoyan Stefanov Books

JavaScript Object Oriented Programming

By Stoyan Stefanov, Ved Antani, Kumar Chetan Sharma

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Object Oriented JavaScript Learn everything you need to know about object oriented JavaScript OOJS 3rd Edition

By Stoyan Stefanov, Ved Antani

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Building Online Communities with phpBB 2

By Mike Lothar, Stoyan Stefanov, Jeremy Rogers

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PHP Programming with PEAR

By Lucke Carsten, Stoyan Stefanov, Wormus Aaron, Schmidt Stephan

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PhpBB

By Stoyan Stefanov, Jeremy Rogers

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"phpBB is a free, open source Internet community application, with outstanding discussion forums and membership management. Written in the PHP scripting language, and making use of the popular MySQ...

Speed Matters

By Stoyan Stefanov

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JavaScript Patterns

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JavaScript for PHP Developers

By Stoyan Stefanov

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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.