Prof. Dr. Ralf T. Kreutzer has been Professor of Marketing at the Berlin School of Economics and Law (Germany) as well as Marketing and Management Consultant since 2005. Prior to that, he spent 15 years in various management positions at Bertelsmann, Volkswagen, and Deutsche Post before being appointed Professor of Marketing in 2005. Through regular publications and lectures, Prof. Kreutzer has provided significant impetus on various topics relating to marketing, dialog marketing, CRM/customer loyalty systems, database marketing, online marketing, social media marketing, digital Darwinism, digital transformation, artificial intelligence, strategic as well as international marketing, and has advised many companies in Germany and abroad on these topics.Prof. Dr. Sonja Klose is Professor of Marketing at the Berlin School of Economics and Law (Germany) and is also active as a trainer, consultant, and coach. Previously, she taught at ESCP Business School,SRH University of Applied Sciences and FOM University of Economics & Management.