 Ahlfors was a visiting scholar at the Institute for Advanced Study in 1962 and again in 1966.He was awarded the Wihuri Prize in 1968 and the Wolf Prize in Mathematics in 1981.He served as the Honorary President of the International Congress of Mathematicians in 1986 at Berkeley, California, in celebration of his 50th year of the award of his Fields Medal

His book "Complex Analysis" (1953) is the classic text on the subject and is almost certainly referenced in any more recent text which makes heavy use of complex analysis.