Charles R. Johnson Books

Middle Passage

By Charles R. Johnson

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Taming the Ox

By Charles R. Johnson

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Buddhism-influenced essays, stories, and reviews by National Book Award winner Charles R. Johnson.      This wide and varied collection of essays, reviews, and short stori...

Matrix Analysis

By Charles R. Johnson, Roger A. Horn

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Topics in Matrix Analysis

By Charles R. Johnson, Roger A. Horn

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Matrix analysis

By Roger A. Horn

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"The thoroughly revised and updated second edition of this acclaimed text has several new and expanded sections and more than 1,100 exercises"--

Soulcatcher and Other Stories

By Charles Johnson, BookSource Staff

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Totally Nonnegative Matrices

By Charles R. Johnson, Shaun M. Fallat

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Totally nonnegative matrices

By Shaun M. Fallat

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"Totally nonnegative matrices arise in a remarkable variety of mathematical applications. This book is a comprehensive and self-contained study of the essential theory of totally nonnegative matric...

History of the First One Hundred Years of the First Congregational Church Norwich New York 1814 1914

By Charles R. Johnson

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Bryan Roe A Soldier of the Cross

By Charles R. Johnson

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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.