George Kalogerakis Books

The New York Times' Disunion: A History of the Civil War

By Edward L. Widmer, George Kalogerakis, Clay Risen

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"Between 2011 and 2015, the Opinion section of The New York Times published Disunion, a series marking the long string of anniversaries around the Civil War, the most destructive, and most defining...

SPY

By Kurt Andersen, George Kalogerakis, Graydon Carter

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The New York Times disunion

By Edward L. Widmer, George Kalogerakis, Clay Risen

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"Modern historians revisit and reconsider the Civil War from Lincoln's election to the Emancipation Proclamation."

New York Times Disunion

By George Kalogerakis, The New York Times, Ted Widmer, Clay Risen

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New York Times Disunion

By George Kalogerakis, New York Times Staff, Ted Widmer, Clay Risen

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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.