In 1959, his first book was published, emerging from his master's thesis: Lebanon in the Last Years of Feudalism. Then, at Oxford University, he did post-doctorate work for a year with Professor Albert Hourani. While he was at Oxford, Gustave von Grunebaum recruited Kerr for a teaching post at the University of California at Los Angeles; his career matured over the course of twenty years of teaching in Los Angeles, from 1962 to 1982.[citation needed]