Gerald W. Haslam Books

Manuel and the Madman

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With the encouragement of his aging neighbor, "the Madman," Manuel, half-Anglo and half-Hispanic, faces the challenges of entering junior high school and comes to value his mixed heritage.

Coming of age in California

By Gerald W. Haslam

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Out of the Slush Pile and into Print

By Gerald W. Haslam, Perry Glasser

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Haslam's valley

By Gerald W. Haslam

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Workin Man Blues

By Richard Chon, Gerald W. Haslam, Alexandra Haslam Russell

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Workin Man Blues

By Gerald W. Haslam

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Other California

By Gerald W. Haslam

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In thought and action

By Gerald W. Haslam

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"One of the most gripping images from the 1960s captures the slight figure of Dr. S. I. Hayakawa scrambling onto a sound truck parked in front of San Francisco State College amid campus unrest. Hay...

California Heartland

By Gerald W. Haslam, James D. Houston

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Other California

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.