This volume is the commemorative publication for Prof. Dr. Arist von Schlippe on his 70th birthday in April 2021. As part of his work at the Witten Institute for Family Business (WIFU) at the University of Witten / Herdecke since 2005, the jubilee has had a special impact on research and practice transfer. With this volume, long-standing research colleagues, companions, and friends honor the great achievement of Arist von Schlippe and show what traces he has left in this field in 15 years. Arist von Schlippe is well known, professionally recognized and respected in the family business research community, but more than that: He is very much valued as a person. Almost 40 national and international colleagues from research, consulting and the field of family entrepreneurship dedicate specialist articles to him on central issues relating to their work. The contributions to the work of the honored bear a personal note.