Theory of moduli lectures given at the 3rd 1985 session of the Centro internazionale matematico estivo (C.I.M.E.) held at Montecatini Terme, Italy, June 21-29, 1985 / E. Sernesi, ed. - Sernesi, E. (Edoardo) (Lecture notes in mathematics (Springer-Verlag) ;, 1988)