Cathy Warren Books

Edexcel GCSE History B schools history project
Edexcel GCSE History B schools history project
Edexcel International GCSE 9 1 History Changes in Medicine C1848 C1948 Student Book
Saturday Belongs to Sara
Saturday Belongs to Sara

By Cathy Warren

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Springtime bears
Springtime bears

By Cathy Warren

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After Mama Bear has played with her three babies all winter, her gruffness about spring cleaning makes them wonder if she still loves them.

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Edexcel GCSE Schools History Project Exam Skills Practice Workbook - Support
Edexcel GCSE Schools History Project Exam Skills Practice Workbook - Extend

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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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