Elisabeth Countess Palatine Books

The correspondence between Princess Elisabeth of Bohemia and Rene Descartes

By Princess Elisabeth Of Bohemia, Rene Descartes, Elisabeth Countess Palatine

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"Between the years 1643 and 1649, Princess Elisabeth of Bohemia (1618 80) and Rene; Descartes (1596 1650) exchanged fifty-eight letters thirty-two from Descartes and twenty-six from Elisabeth. Thei...

Descartes la Princesse Elisabeth et la Reine Christine

By Louis Alexandre Foucher De Careil Co, Rene Descartes, Elisabeth Countess Palatine

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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.