The textbook has a practical approach and is useful not only for the students but also for anyone who would like to gain practical insights in regard to essential aspects of entrepreneurship. The primary purpose of this textbook is to serve as textbook in universities for the entrepreneurship course. Secondary, for the practical purposes of entrepreneurs and everyone who would like practice-oriented knowledge in this regard. The contribution to the field is a huge one, and it will be the milestone and the point of reference from now on.