The Division of Fire Safety Engineering has received the visit of Dr Jake Pauls, one of the founding fathers of the evacuation research field. Jake is the inventor of the effective width concept and a leader expert on stair evacuation. His research findings are today reflected in several Fire Safety Codes and Handbooks (e.g. NFPA, SFPE handbook, etc.). Jake was hosted by Dr Enrico Ronchi and Dr Håkan Frantzich who showed him the laboratory facility at Lund University and discussed the evacuation research conducted in Lund. Jake also shared some early evacuation research work (even from back in the 70ies) which represent historical scientific pieces of work in this research field.