Mark E. Saul Books

Hadamard s plane geometry
Hadamard s plane geometry

By Mark E. Saul

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Trigonometry
Trigonometry

By Mark E. Saul, Israel M. Gel'Fand, I. M. Gelfand, Izrail Moiseevich Gel'Fand, I. M. Gelʹfand, Mark Saul

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Trigonometry, A Work In The Collection Of The Gelfand School Program, Is The Result Of A Collaboration Between Two Experienced Pre-college Teachers, One Of Whom, I.m. Gelfand, Is Considered To Be A...

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The peak in the middle
The peak in the middle

By Mark E. Saul

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The New York City Contest Problem Book
Camp Logic
Camp Logic

By Sian Zelbo, Mark Saul

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Trigonometry Gelfand Mathematical Seminar Series
Trigonometry
Trigonometry

By Mark Saul, I.M. Gelfand

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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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