Margaret Brown Klapthor Books

First Ladies Cookbook

By Margaret Brown Klapthor

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The First Ladies

By Margaret Brown Klapthor

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1st Ladies

By Margaret Brown Klapthor

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The history of Charles County, Maryland

By Margaret Brown Klapthor

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Official White House china

By Margaret Brown Klapthor

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Evoking distinguished gatherings of royalty, diplomats, politicians, and celebrities at the nation's First Table, Official White House China documents more than 200 years of porcelains purchased fo...

The First Ladies cook book

By Margaret Brown Klapthor

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The First Ladies Hall

By Margaret Brown Klapthor, National Museum Of History And Technology.

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Official White House china

By Margaret Brown Klapthor

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Frederic Edwin Church and the national landscape

By Margaret Brown Klapthor, Franklin Kelly

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G. Washington, a figure upon the stage

By Margaret Brown Klapthor

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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.