Dorothy Twohig Books

The Papers Of George Washington: September 1789-January 1790 (Volume 4) (Presidential Series)

By George Washington, Dorothy Twohig, Washington George 1732-1799, W. W. Abbot

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Volume 10 of the Presidential Series continues the fourth chronological series of The Papers of George Washington. The Presidential Series, when complete, will cover the eight precedent-setting yea...

The Papers of George Washington

By Philander D. Chase, Beverly H. Runge, W. W. Abbot, George Washington, Dorothy Twohig

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The Papers of George Washington

By Philander D. Chase, George Washington, Dorothy Twohig, Edward G. Lengel

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The Papers Of George Washington: January To May, 1793 (Volume 12) (Presidential Series)

By George Washington, Dorothy Twohig, Washington George 1732-1799, Christine Sternberg Patrick, W. W. Abbot

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The papers of George Washington.

By George Washington

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The Papers Of George Washington: June-September 1789

By George Washington, Dorothy Twohig, Washington George 1732-1799, W. W. Abbot

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George Washington's diaries

By George Washington

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George Washington's diaries

By George Washington

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The Papers Of George Washington: September 1791-February 1792 (Presidential Series) (Vol 9)

By George Washington, Dorothy Twohig, Washington George 1732-1799, W. W. Abbot

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George Washington and the Virginia backcountry

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This collection of essays explores the role that the geography and diverse inhabitants of this burgeoning area played in molding Washington's life, temperament, and politics. Written by authoritati...

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.