The technical interactions used in the process of rotational molding of plastic are the focus of this practical, clearly organized, and well-illustrated monograph. Crawford (mechanical engineering, Queen's U., Belfast) and Throne (a consultant) lead the reader through the process, introducing it and its history before describing the technology involved. The chapters describe rotational molding polymers, grinding and coloring of solid polymer powders, an overview of commercial rotational molding machines, mold materials and design, technical description of powder flow behavior, and an overview of the technical aspects of the process that influence part design. Annotation c. Book News, Inc., Portland, OR (booknews.com)