Kathy Sierra Books

Head First Servlets and JSP

By Bert Bates, Bryan Basham

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OCA OCP Java SE 8 Programmer Certification Bundle

By Bert Bates, Kathy Sierra, Elisabeth Robson

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OCA Java SE 8 Programmer I Exam Guide Exams 1Z0 808

By Bert Bates, Kathy Sierra

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OCP Java SE 8 Programmer II Exam Guide Exam 1Z0 809

By Bert Bates, Kathy Sierra, Elisabeth Robson

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The answers to what makes a sustainable bestseller aren't in the successful product. The answers are in the successful product's users. It's not the product success that matters most, it's the succ...

Head first java

By Kathy Sierra

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Head First Design Patterns

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Use A Cabeca Java

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Oca ocp Java Se 7 Programmer I Ii Study Guide Exams 1z0 803 1z0 804

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SCJP Sun Certified Programmer for Java 6 Exam 310-065

By Kathy Sierra

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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.