The conference 19th Days of Applied Psychology will take place on September 29th and 30th, 2023, and it is organized by the Faculty of Philosophy of the University of Niš ?irila i Metodija 2, Niš, Serbia. The official topic of the Conference this year is Transformative processes in society, environment, organization, and mental health practice. We accept submissions on any topic in psychological research. We have decided that the 19th annual international scientific conference Days of Applied Psychology will be held in a hybrid format. Participants will be able to attend lectures and sessions online, via video conferencing software, as well as in person, in the premises of the Faculty of Philosophy. A unique Collaboration Hub session will be organized, where researchers will have the opportunity to present their projects, whose achievement requires expanding the network of collaborators beyond the borders of their country.