Susan Quilliam Books

Everywoman's guide to sexual fulfillment

By Susan Quilliam

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Child Watching

By Susan Quilliam

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Your sexual self

By Susan Quilliam

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Topics covered include : Understanding sexual beliefs, gender identity and sensual confidence Sexual decision-making Self-pleasuring and making love with a partner Sexual troubleshooting New approa...

Which word?

By Susan Quilliam

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1001 Essay Titles

By Susan Quilliam

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333 Letter Questions

By Susan Quilliam

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New Extension Readers

By Alison Sinclair, Susan Quilliam, Philippa Murray

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Landscapes New Extension Readers

By Alison Sinclair, Susan Quilliam, Philippa Murray

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Treasures New Extension Readers

By Alison Sinclair, Susan Quilliam, Philippa Murray

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New Extension Readers

By Alison Sinclair, Susan Quilliam, Philippa Murray

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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.