Chris Shiflett Books

Essential PHP Security

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Being highly flexible in building dynamic, database-driven web applications makes the PHP programming language one of the most popular web development tools in use today. It also works beautifully...

HTTP Developer's Handbook

By Chris Shiflett

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HTTP Developer's Handbook

By Chris Shiflett

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Essential PHP Security

By Chris Shiflett

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Essential PHP Security

By Chris Shiflett

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PHP in Action

By Dagfinn Reiersol, Chris Shiflett, Marcus Baker

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PHP in Action

By Marcus Baker, Dagfinn Reiersol, Chris Shiflett

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HTTP Developer s Handbook

By Chris Shiflett

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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.