Lectures on p-ADIC L-FunctionsAn especially timely work, the book is an introduction to the theory of p adic L functions originated by Kubota and Leopoldt in 1964 as p adic analogues of the classical L functions of Dirichlet. Professor Iwasawa reviews the classical results on Dirichlet's L functions and sketches a proof for some of them. Next he defines generalized Bernoulli numbers and discusses some of their fundamental properties. Continuing, he defines p adic L functions,