Steven Reiss introduced a groundbreaking personality concept based on rigorous scientific and empirical foundations with his Reiss Motivation Profile 20 years ago. Since 2002, this instrument, which represents a quantum leap compared to previously available tools and methods, has been utilized in the German-speaking world. With the Reiss Motivation Profile, Steven Reiss not only provides us the opportunity to analyze the key personality traits of an individual: by examining the life motives that motivate each person, he enables us to present and understand an individual's personality in a nuanced way, highlighting our differences. The Reiss Motivation Profile is, above all, an incredibly useful tool for anyone who wishes to engage in self-reflection.