Katrina Williams Books

Evidence Based Pediatrics and Child Health
Understanding autism
Understanding autism

By Katrina Williams

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Drawing on the authors' years of clinical experience as well as the latest research, this essential reference explores everything from the causes of autism to how it manifests at the various ages a...

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Understanding autism
Understanding autism

By Katrina Williams

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Understanding Autism
Trouble down South and Other Stories
Health Science Research
Teaching Grammar with Mnemonics Poems and Stories
Commanding Your Journey
Commanding Your Journey

By Katrina Williams

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Skill and Drill No More
Skill and Drill No More

By Katrina Williams

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Learning Vocabulary One Task Card at a Time

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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.

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