Robert D Biggs joined the staff of the Chicago Assyrian Dictionary (CAD) in 1963 after receiving his Ph.D. from Johns Hopkins University. In June 2004, he celebrated his 70th birthday and retired from the University of Chicago as Professor of Assyriology in the Department of Near Eastern Languages and Civilizations; his service to the CAD, however, will continue until the final volume appears. To acknowledge and honour his forty-one years of extraordinary service to the Assyrian Dictionary as collaborator, associate editor, and editorial board member, contributions from some of his former and current CAD colleagues are assembled into the volume. It is fitting to revive this series, as the first volume, From the Workshop of the Chicago Assyrian Dictionary: Studies Presented to A Leo Oppenheim , appeared forty years ago, in June 1964, and Biggs’s contribution there was his first published article.