William Dunham Books

Journey through Genius

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Like masterpieces of art, music, and literature, great mathematical theorems are creative milestones, works of genius destined to last forever. Now William Dunham gives them the attention they dese...

The Mathematical Universe

By William Dunham

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Journey Through Genius: The Great Theorems of Mathematics

By William Dunham

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The Mathematical Universe: An Alphabetical Journey Through the Great Proofs, Problems, and Personalities

By William Dunham

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From the simple elegance of the Pythagorean theorem to the looking-glass world of Russell's Paradox and the summed infinities of integral calculus, experience the beauty and majesty of the mathemat...

The Calculus Gallery

By William Dunham

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The Calculus Gallery

By William Dunham

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The Calculus Gallery

By William Dunham

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The Genius of Euler

By William Dunham

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Euler

By William Dunham

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Great Thinkers Great Theorems

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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.