Erik W. Grafarend Books

While preparing and teaching ‘Introduction to Geodesy I and II’ to - dergraduate students at Stuttgart University, we noticed a gap which motivated the writing of the present book: Almost every top...

Map Projections: Cartographic Information Systems

By Friedrich W. Krumm, Erik W. Grafarend, Professor Dr. Erik W. Grafarend, Dr. Friedrich W. Krumm (Auth.)

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In the context of Geographical Information Systems (GIS) the book offers a timely review of map projections (sphere, ellipsoid, rotational surfaces) and geodetic datum transformations. For the need...

Solving Algebraic Computational Problems In Geodesy And Geoinformatics: The Answer To Modern Challenges

By Erik W. Grafarend, Joseph L. Awange

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The book presents modern and efficient methods for solving Geodetic and Geoinformatics algebraic problems using computer algebra techniques of Ring, polynomials, Groebner basis, resultants, Gauss-J...

Algebraic geodesy and geoinformatics

By Joseph L. Awange

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Optimization and Design of Geodetic Networks

By Erik W. Grafarend

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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.