David Webster Books

Understanding Geology Banded Set
Bone Picture Book
Bone Picture Book

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PageMaker 5.0 by Example: Windows Version
Pagemaker 4.0 by Example
Documents in Renaissance and Reformation History
Brain Boosters
Brain Boosters

By David Webster

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Snow Stumpers.
Snow Stumpers.

By David Webster

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More brain-boosters
More brain-boosters

By Webster David

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A collection of puzzles, riddles, and experiments involving biology, physics, chemistry, and mathematics.

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More brain-boosters
More brain-boosters

By Webster David

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A collection of puzzles, riddles, and experiments involving biology, physics, chemistry, and mathematics.

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Crossroad Puzzlers.
Crossroad Puzzlers.

By David Webster

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Related Articles from our Blog

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.

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