It is a political essay although not linear, by which its author considers the ways of the principates and the way by which they can be conquered and preserved. Some examples are given, among which Francesco Sforza's and above all Borgia's. In this last one are evident the great political capacities and the great ambition far superior to the simple search of the personal utility, very strong also in diseases till death itself. The authors goes forward to develop his reasoning with a tension that gives character and strenght to the persons examined so that the sayings extracted from the descriprtion of actions do not follow a rigid deductive criterium but appear almost inspired to personal experiences of which the author gives proof with examples from antique and contemporary history, so as to confirm them.
The most famous part, however, is the description of the Prince himself. He is the man who must possess or pretend to possesss some particular qualities. he must wish to to arrive to the real truth of things, leaving apart non-existent realms. He has to be particularly a Prince seen as a Beast, and by this way a lion or a fox, according to the events.