The present work has as its main purpose to analyze and expose Wesley`s Newcomb Hohfeld theory, so the methodology used is purely authorial. Thus, the first part of the research brings the author`s biography in order to situate the reader in the theory`s elaboration context. The second chapter is about Hohfeld`s fundamental legal conceptions, his main contribution to the general law theory. The third part seeks to distinguish, applying the fundamental legal conceptions presented afore, the concepts of right in rem and right in personam, phrases that have always been confusing to jurists. Moreover, the fourth chapter will bring some critics made by important authors to Hohfeld`s theory. Furthermore, in the conclusion there will be made an attempt to expose the positive and negative topics in Hohfeld`s theory as a closure to the research.