This volume contains the proceedings of a conference honouring Dijen K. Ray-Chaudhuri on the occasion of his 65th birthday held at Ohio State University in 2002. Dijen Ray-Chaudhuri is a well-known combinatorist who is most renowned for BCH-codes, which appear in every textbook on coding theory. He is also an influential teacher. The volume contains 22 contributions, written mostly by his former students, and relates to various aspects of algebraic combinatorics, coding theory, tilings, block designs and graph theory. Highlights of Dijen Ray-Chaudhuri’s research are reviewed in the first contribution by A. Seress, which also includes a list of his papers. It is a nice volume honouring a very fine mathematician.