Book excerpt: A collection of all the reviews and teaching editorials that first appeared in Bioconjugate Chemistry between 1989 and January 1993. Offers an extensively referenced introduction to the subject by Bioconjugate Chemistry Editor Claude F. Meares. Includes sections on proteins, nucleic acids, synthetic polymers, targeted antibodies, and antibody conjugates. Valuable reading for active practitioners as well as for students seeking an introduction to this area of research.