In this article, we present an analysis of digitized university textbook "Fundamentals of motion theory of artificial Earth satellites" written by professor Jovan Lazović. This textbook was the first one where the motion theory of artificial satellites was shown using clear mathematical and astronomical language. The whole textbook is written precisely and systematically. In order to understand this subject, the previous knowledge in advanced mathematics, astronomy and celestial mechanics are required. The digitized version of this book is publicly available in Virtual Library of the Faculty of Mathematics.