Barbara Hamilton Books

The Ninth Daughter

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In the Massachusetts Colony, political upheaval turns murderous?a new series featuring First Lady Abigail Adams. 1773: The Massachusetts colony is torn between patriots who want independence from...

Kokomo

By Hamilton Thomas D.

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Spinning The Fleece.

By Barbara Hamilton

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The ninth daughter

By Barbara Hamilton

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A Marked Man

By Barbara Hamilton

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Sup with the Devil

By Barbara Hamilton

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A Marked Man

By Barbara Hamilton

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Read Barbara Hamilton's blogs and other content on the Penguin Community. "Abigail Adams could become my favorite historical sleuth." (Sharon Kay Penman) Abigail Adams, wife of attorney John Ada...

Sup with the Devil

By Barbara Hamilton

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Divided loyalties can lead to deadly obsessions...The new mystery starring American icon Abigail Adams! After an attempt on the life of her young nephew Horace, Abigail Adams, wife of attorney Jo...

The ninth daughter

By Barbara Hamilton

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When a murder occurs in the home of their friend and fellow patriot, Rebecca Malvern, John Adams is accused of the gruesome crime, which was seemingly perpetrated to obtain a secret Sons of Liberty...

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.