Five vols., a complete set: 'The Renascence' (1947, first English edition), '17th and 18th Centuries' (1951, first English edition), 'Greek', 'Graeco-Roman' and 'The Medieval Phase' (1952, second English editions, first published in 1934 and 1943); digging down into primary sources '... to recall the views on literature and literary theory current ...' from Ancient Greece to the 18th century.