Kristin Erickson Books

Use Case Modeling

By Ian Spence, Kurt Bittner, Kristin Erickson

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Developers who effectively employ use cases deliver better applications—on time and under budget. The concept behind use cases is perhaps as old as software itself; they express the behavior of sys...

143 Reasons Mister Rogers Still Matters

By Kristin Erickson, Debra Englander

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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.