Susan Sinnott Books

A biography of the wife of the thirty-fourth president of the United States, an excellent White House hostess and a popular First Lady who did not involve herself in politics.

Sarah Childress Polk, 1803-1891

By Susan Sinnott

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A biography of the First Lady who served as personal secretary to her husband, the eleventh president of the United States, and who was thereby involved in the daily workings of his administration.

Extraordinary Asian Americans and Pacific Islanders

By Susan Sinnott

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Extraordinary Asian Americans and Pacific Islanders

By Susan Sinnott

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Extraordinary Hispanic Americans Extraordinary People Paperback

By Susan Sinnott

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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.