Robinson is the official biographer of Charlie Chaplin and his book, Chaplin: His Life and Art, was first published in 1985 (in a revised form in 1992 and 2001).
Robinson adalah biografer resmi Charlie Chaplin dan buku buatannya, Chaplin: His Life and Art, mula-mula diterbitkan pada 1985 (dalam sebuah bentuk revisi pada 1992 dan 2001).