Gerald W. Haslam Books

Okies

By Gerald W. Haslam

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Straight white male

By Gerald W. Haslam

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"Leroy Upton, the "straight white male" who is the novel's central character, has come a long way from the sun-baked working-class neighborhood in Bakersfield where he grew up. The son of an oil-fi...

Jack Schaefer

By Gerald W. Haslam

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The other California

By Gerald W. Haslam

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Grace Period

By Gerald W. Haslam

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Lawrence Clark Powell

By Gerald W. Haslam

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California heartland

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Snapshots

By Gerald W. Haslam

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The wages of sin

By Gerald W. Haslam

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Voices of a place

By Gerald W. Haslam

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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.