This is the first edition to collect together Milton's non-poetic manuscript writings. It is also the first edition of Milton's Commonplace Book manuscript to provide both the original text and a full translation and commentary. Additional sections furnish editions of Milton's draft ideas for dramas from the Trinity College manuscript, as well as his surviving presentation inscriptions. Full biobibliographies and indexes are also provided. This edition is an essential resource for any scholar wishing to understand the development of Milton's thought as assisted by or reflected in his reading.