Stephen G. Kochan Books

Introduction to C Programming

By Stephen G. Kochan

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Shell Programming in Unix Linux and OS X The Fourth Edition of Unix Shell Programming 4th Edition Developer's Library

By Stephen G. Kochan, Patrick Wood

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Programming in Objective-C 2.0

By Stephen G. Kochan

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Presents an introduction to Objective-C 2.0, covering such topics as classes and objects, data types, polymorphism, Foundation Framework, memory management, and archiving.

Programming in Objective-C, Third Edition

By Stephen G. Kochan

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Presents an introduction to Objective-C, covering such topics as classes and objects, data types, polymorphism, Foundation Framework, memory management, and archiving.

Programming in Objective-c 2.0 Livelessons Part I Language Fundamentals and Part II: Iphone Programming and the Foundation Framework

By Stephen Kochan

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Programming in C

By Stephen G. Kochan

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Programming in Objective-C

By Stephen G. Kochan

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Programming in Objective-C

By Stephen G. Kochan

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Topics in C Programming, Revised Edition

By Stephen G. Kochan, Patrick H. Wood

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Programming in ANSI C

By Stephen G. Kochan, Stephen Kochan

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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.