Cath Senker Books

Poverty and hunger

By Cath Senker

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An interesting take on exploring global issues through maps, figures, images, statistics and extensive lists of facts.

J.K. Rowling

By Cath Senker

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Describes the life of the British author whose blockbuster "Harry Potter" series catapulted her from poverty into worldwide fame.

A Teen Guide to Being Eco in Your Community

By Cath Senker

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Everyday life in ancient Greece

By Cath Senker

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A brief, illustrated, overview of the geography, history, customs, beliefs, monuments, day-to-day life, and social structure of ancient Greece, a civilization that flourished for almost 2,000 years.

Everyday Life in the Bible Lands Uncovering History

By Cath Senker

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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.