Louis G. Castonguay, PhD, is a liberal arts professor of psychology at Penn State University. His research focuses on factors related to the process, outcome, and training of psychotherapy. He has been involved in practice-research networks and has conducted practice-oriented research aimed at better understanding and improving psychotherapy as practice in natural settings. He has more than 250 publications, including 13 co-edited books.Dana Atzil-Slonim, PhD, is an associate professor of clinical psychology at Bar-Ilan University, where she serves as the research director of the university's community clinic and leads the Psychotherapy Research Lab. Her research focuses on the intrapersonal and interpersonal dynamics that drive therapeutic change, integrating advanced artificial intelligence techniques to enhance precision in the treatment of depression.Michael Barkham, PhD, is emeritus professor of clinical psychology at the University of Sheffield. He has conducted researchon psychological therapies since 1985, particularly on measure development and support for their adoption by practitioners in routine practice. He has been a longstanding advocate for the paradigm of practice-based evidence as a complementary research paradigm to trials-based methods.Wolfgang Lutz, PhD, is a professor of clinical psychology and psychotherapy at Trier University. He is one of the pioneers of patient-focused feedback research and empirically based personalization of psychological treatments and has worked in this area for more than 30 years using data from routine clinical practice in several countries.