Jon Sonstelie Books

For Better Or For Worse? School Finance Reform In California

By Eric Brunner, Jon Sonstelie, Kenneth Ardon, Jon Sonstelie, Eric Brunner, Kenneth Ardon

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Over the past twenty-five years, California has revolutionized its system of school finance. In the 1960s, school districts set their own property tax rates, and the state supplemented the district...

School Finance and California s Master Plan for Education

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High Expectations Modest Means

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School Budgets and Student Achievement in California

By Jon Sonstelie, Peter Richardson, Heather Rose

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Fiscal Realities

By Tracy M. Gordon Jaime Calleja Alderete Patrick J. Murphy Jon Sonstelie Ping Zhang

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School Resources and Academic Standards in California

By Heather Rose

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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.