Leigh Armistead Books

Information operations matters

By Leigh Armistead

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Zi xun zuo zhan

By Leigh Armistead

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Professional Ethics for School Psychologists: a Problem-Solving Model Casebook, 3rd Edition

By Susan Jacob, Barbara Bole Williams, Leigh Armistead

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Ethical decision-making forms the foundation of school psychological practice and is essential to protecting the rights of children and families. It both shapes daily delivery of school psychologic...

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.