Douglas Downing Books

Barron s E Z statistics

By Douglas Downing

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Dictionary of mathematics terms

By Douglas Downing

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Defines terms from algebra, analytic geometry, arithmetic, calculus, computers, geometry, logic, matrices and linear programming, probability and statistics, sets, trigonometry, and vectors.

Business statistics

By Douglas Downing

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E Z trigonometry

By Douglas Downing

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Calculus

By Douglas Downing

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Anatomy Color in Flash Cards

By Dr Kurt Albertine

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Forgotten statistics

By Douglas Downing

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Dictionary of computer terms

By Michael A. Covington

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Encyclopedia of computer terms

By Douglas Downing

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Dictionary of computer and Internet terms

By Douglas Downing

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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.