Katie John Sharp Books

Rigby on Our Way to English: Leveled Reader Grade 2

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Look, find & learn

By Katie John Sharp

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Tim Berners Lee

By Katie John Sharp

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Human body

By Katie John Sharp

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"Describes the basic human body systems and parts - how they function and how they relate to each other. As readers use scientific inquiry to learn what the human body needs to survive and thrive,...

Soil

By Katie John Sharp

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Lemonade on the double

By Katie John Sharp

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Ivan and Nick follow their Mom's recipe for making lemonade.

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.