James P. Pfiffner Books

The strategic presidency

By James P. Pfiffner

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Organizing the Presidency

By Stephen Hess, James P. Pfiffner

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"In the third edition of Organizing the Presidency, Stephen Hess, with the assistance of James P. Pfiffner, surveys presidential organizations from Roosevelt's to George W. Bush's, examining the ch...

Organizing the Presidency

By Stephen Hess, James P. Pfiffner

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Power play

By James P. Pfiffner

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"Analyzes the Bush presidency's efforts to expand executive power, putting them into constitutional and historical perspective. Explores the evolution of Anglo-American thinking about executive pow...

The President, the budget, and Congress

By James P. Pfiffner

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The President, the budget, and Congress

By James P. Pfiffner

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The President & economic policy

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The President & economic policy

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The Presidency in transition

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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.