Albert Einstein Books

The lectures in this volume were given in 1921, the same year that Einstein received the Nobel Prize for Physics. They remain key texts for anyone wishing to discover the workings of one of the mos...

Die so unterschiedlichen Theorien von Raum und Zeit. Der transzendentale Idealismus Kants im Verhaltnis zur Relativitatstheorie Einsteins.

By Werner Bernhard Sendker

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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.