Jon Holt is an internationally-recognised expert in the field of Model-based Systems Engineering (MBSE). He is an award-winning author and public speaker and has authored 12 books on MBSE and its applications. Since 2014 he has been a director and consultant for Scarecrow Consultants, who are experts in the field of MBSE. He is also a Professor of Systems Engineering at Cranfield University, UK. He is a Fellow of both the IET and the BCS and a Chartered Engineer and Chartered IT Professional. He is currently the Technical Director of INCOSE UK. He is also actively involved in the promotion of Science Technology Engineering and Mathematics (STEM) where he uses magic, mind-reading and occasional escapology to promote Systems Engineering at science festivals. He has authored the children's STEM book 'Think Engineer'. Simon Perry is an expert in the field of Model-Based Systems Engineering. He regularly speaks at systems engineering conferences and is the author of eight books on systems engineering and related topics. Since 2014 he has been a director and consultant for Scarecrow Consultants, who are experts in the field of MBSE. He delivers systems engineering training and consultancy to customers and carries out research in many aspects of systems engineering. He works for industry, government and academia, and he has applied his work across many disciplines in a wide range of industries including the defence, nuclear, timber engineering, finance, train manufacturing and automotive industries. Speaking at events, writing books and teaching training courses and workshops have given Simon a great experience in communicating technical concepts to non-domain experts and to non-technical audiences.