Kripke's groundbreaking study "Naming and Necessity" marks a turning point in the philosophical theory of proper names. In critical engagement with the classical theory of proper names, Kripke develops his famous alternative: the causal theory of names. This theory states that the reference of a name is initially established in a kind of baptism and then transmitted within the community of communication. The description that played a role in establishing the reference becomes irrelevant, so the name itself has no semantic meaning. Unlike descriptions, names are what are called rigid designators, which, once established, refer to the same object in all possible worlds. This leads to the connection to the second theme of the study, necessity.