Karl Johan Donner Books

Fundamental Astronomy

By Pekka Kroger, Heikki Oja, Markku Poutanen, Karl Johan Donner, Hannu Karttunen

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Fundamental Astronomy

By Pekka Kroger, Heikki Oja, Markku Poutanen, Karl Johan Donner, Hannu Karttunen

Average: 0.00, 0 Ratings

Fundamental Astronomy

By Pekka Kroger, Heikki Oja, Markku Poutanen, Karl Johan Donner, Hannu Karttunen

Average: 0.00, 0 Ratings

Fundamental Astronomy

By Pekka Kroger, Heikki Oja, Markku Poutanen, Karl Johan Donner, Hannu Karttunen

Average: 0.00, 0 Ratings

Fundamental Astronomy gives a well-balanced and comprehensive introduction to the various fields of classical and modern astronomy. While emphasizing both the astronomical concepts and the underlyi...

Fundamental Astronomy

By Pekka Kroger, Heikki Oja, Markku Poutanen, Karl Johan Donner, Hannu Karttunen

Average: 0.00, 0 Ratings

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.