Philip C. Seyer Books

What makes music work

By Philip C. Seyer

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Understanding hypertext

By Philip C. Seyer

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Understanding hypertext

By Philip C. Seyer

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Atari player missile-graphics in BASIC

By Philip C. Seyer

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What Makes Music Work

By Harmon, Paul, Paul Harmon, Philip C. Seyer, Allan B. Novick, Philip Seyer, Seyer, Philip C., 1941-, Novick, Allan B, Allan Novick

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Innovative, up-tempo approach to learning music. It makes learning a simple and natural process--even if you've never taken a formal music course. "A lucid, well-organized introduction to music the...

Choosing success

By Dorothy Jongeward

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Mastering Sprint macro programming

By Eddy Conway

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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.