Andrew P. Trout Books

City on the Seine Ancien Paris in the Time of Richelieu and Louis XIV

By Andrew P. Trout

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Jean-Baptiste Colbert

By Andrew Trout, Andrew P. Trout

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Tontine

By Robert M. Jennings, Andrew P. Trout

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City on the Seine

By Andrew P. Trout

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Andrew Trout's chronicle of Paris during the period preceding the end of Louis XIV's reign is a fascinating history of the city anchored by the lives of two of its most famous citizens. Beginning w...

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.