Congratulations to Dr. Daniel Lewin, recipient of the 2010 Himmelblau Award for his Wiley software product “Using Process Simulators”. A principal objective of this textbook is to describe and model modern strategies for the design of chemical products and processes, with an emphasis on a systematic approach. This third edition expands upon the strategies for product design, beginning with the need for a project charter, followed by the creation of an innovation map in which potential new technologies are linked to consumer needs. Then, it focuses on the Stage-GateTM Product-Development Process (SGPDP) for the design of basic, industrial, and configured consumer chemical products. Six new case studies have been added to illustrate these product design strategies.