The following books will be helpful starting points for anyone interested in learning more about Milton's poetry and prose and about early printed books.
Holman, C. Hugh and William Harmon. A Handbook to Literature. 6th ed. New York: Macmillan, 1992.
Hunter, William B., Gen. Ed. A Milton Encyclopedia. 9 vols. Lewisburg: Bucknell U P, 1978-
McKerrow, Ronald B. An Introduction to Bibliography for Literary Students. Oxford: Clarendon Press, 1927. Rpt. Winchester: St. Paul's Bibliographies, 1994.