Stephen Hall is a Professional Engineer (NJ) with a degree in chemical engineering (U of Pennsylvania) and MBA (Drexel U). He is the Chief Process Engineer at Genesis AEC, where he provides technical leadership for designing manufacturing processes for life science clients. His career spans more than 40 years in the industry including jobs with manufacturers (GSK, BMS, MannKind) and engineering consultants (Life Sciences, Quantic, Genesis AEC). His book, Rules of Thumb for Chemical Engineers (Elsevier 2018), is a best seller in its market segment.