Cynthia Opheim Books

State and Local Politics: The Individual and the Governments

By W.B. Stouffer, Susan Bland Day, Cynthia Opheim, Willard B. Stouffer

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Texas Politics Today High School Retail Version

By Joseph Ignagni, William Earl Maxwell, Ernest Crain, Edwin S. Davis, Elizabeth N. Flores, Cynthia Opheim, Christopher Wlezien, Christopher B. Wlezien, William Earl Autmaxwell

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Texas Politics Today

By Joseph Ignagni, Ernest Crain, William Earl Maxwell, Edwin S. Davis, Elizabeth N. Flores, Cynthia Opheim, Christopher B. Wlezien Ph.D.

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TEXAS POLITICS TODAY continues to be a best-selling overview of Texas Politics because it offers students a wide range of viewpoints, drawing on the diverse political and social perspectives of its...

State and local politics

By Willard B. Stouffer

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With a focus on participation, this second edition of State and Local Politics: The Individual and the Governments addresses readers as future leaders of their communities. Engaging and empowering...

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.