The dramatic increase in information and understanding of gene sequences and functions provides the material for this new series of annual publications. Each volume will present the work of ten to fifteen distinguished contriutors. Each article will be devoted to an individual gene in a single organism, to a homologous gene sequence in many organisms, to a gene family within an organism, or to a comparison of different sequences in the same or different organisms. An important new resource for geneticists and other biologists.