Essays on Commercial and Company Law represent a critical analysis of some crucial legal aspects in the field of commerce. The work tries to re-establish why it is important to consider commercial matters differently than other aspects of law. Arguably, the nature of commercial transactions and their implications for general societal development are such, that it is worth revisiting some cornerstones of commercial and company law and to try realigning general perspectives in society with them. The first essay deals with the notion of commercial law, the role of the judiciary in commercial matters, and their interactions with the commercial community. The second essay evaluates different commercial law principles and analyses tensions between them. A critical discussion on separate legal personality and limited liability is presented in the third essay. The last essay applies the notion of separate legal personality to the concept of corporate groups and evaluates legal implications of such practice. The analysis is intended to provide some views which may be of use to legal practitioners and law students as well as to contribute to contemporary discussions in this subject.