Emilio Betti (1890-1968) devoted an important part of his long and intense scholarly activity to Italian civil procedural law. He approached the ‘mysteries’ of the trial both as a ‘Romanist’ and as a positive jurist. He commented on judgments, wrote essays, voluminous monographs and even an actual manual (in fact, in addition to studying the trial, the scholar also taught Italian civil procedure in several of the many universities where he worked). Betti was therefore not a simple ‘complementary proceduralist’. If, therefore, the jurist from Camerino was an authentic ‘proceduralist’, to what extent can his reflections still be said to be significant, current and useful today? Scholars from different scientific backgrounds (‘Romanists’, legal historians and, of course, proceduralists) were called upon to answer these questions. Attention was gradually focused on various of the many topics touched upon by the scholar in the field of procedural law. The reader will thus be able to verify that Emilio Betti’s legacy to the history of the ancient trial and, more generally, to the discipline of procedural law still retains a very great value.