The volume gathers memoirs, official correspondence, diary excerpts and documents relating to Italian foreign policy from the late 1870s through the late 1880s, foregrounding a secret diplomatic mission of 1877 and later ministerial years. It presents negotiations, exchanges with leading European statesmen, and reflections on alliances and national interests, with candid diaries and facsimile autographs that illuminate strategy, diplomatic reasoning, and shifts around the Triplice Alleanza while preserving original texts with minimal editorial alteration.