Lesley Firth Books

Have Fun With Nature

By Lesley Firth, N/A

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What Is It

By Lesley Firth, Grisewood & Dempsey, General Editor, Lesley Firth

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Reprint. Originally published: How does it work? London : Kingfisher Books, 1983 Includes index Answers questions in such areas as science, the arts, transportation, space, history, and contemporar...

What Is It

By FIRTH, Lesley Firth, Lesley, General Editor, Lesley Firth

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When Did It Happen?

By Lesley Firth

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An illustrated question and answer book providing concise explanations of when events occurred in history, in the areas of evolution, civilization, science and technology, space, arts and sports, a...

When Did It Happen?

By Lesley Firth

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Who Were They?

By Lesley Firth, Simon & Schuster Color Illustrated Question & Answer Book

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An illustrated question and answer book providing concise biographical sketches of famous people in history, in the areas of world events, medicine, space, exploration, the arts, and myths and lege...

Who Were They?

By FIRTH, Lesley Firth, Lesley, Simon & Schuster Color Illustrated Question & Answer Book

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The Simon & Schuster Color Illustrated Book Of Q & A

By Grisewood & Dempsey LTD, Lesley Firth, Grisewood & Dempsey

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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.