James Klein Books

Where to find gold in southern California

By James Klein

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Where to Find Gold in the Desert

By James Klein

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Measure by Measure

By James Klein, Bruce McPherson

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Gold Rush!

By James Klein

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Discusses the creation, history, and location of gold, describes tools used by prospectors, and provides instructions on how to find and pan for gold.

Where to Find Gold in Northern California

By James Klein

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Gold Rush

By James Klein, Klein Undifferentiated

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Where to Find Gold in Southern California

By James Klein

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World's Two Top Virologists Say HIV Is a Hoax

By James Klein, Lawrence Cohen, Brett Salisbury, Johnathan Strausberg

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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.