This small volume brings together a series of essays on the doctrinal tradition of Italian ecclesiastical law, published over the years in various journals, aimed at defining its subject matter and historical development. In particular, reference is made to the contributions of Ruffini, Simoncelli, Coviello, Condorelli, De Luca, Bellini, Catalano and Dossetti, to the didactic problems of ecclesiastical disciplines and related doctrinal controversies, with reference also to the most recent canonical contributions.