Book excerpt: For the first time, fixation, resin embedding and immunocytochemistry, the subjects of innumerable publications, have been organised into a comprehensive and coherent scheme showing how the various methodologies interrelate. Commercially available resins and their mode of use are described, and the book considers the advantages for cytochemistry and immunocytochemistry of matching tissue fixation to processing and resin embedding. On-section single and double immunolabelling methods are covered, using immunocolloidal gold and immunoperoxidase.