Automorphic forms are present in almost all areas of modern number theory. Over the past few decades, there has been an explosion of activity and progress in this vast field, leading to exciting new directions of research, new applications, and connections to other fields. The Building Bridges conferences are a central element in this evolution of the subject. The Building Bridges conference is an international biennial event, the 2024 edition will be the sixth. These meetings, which last two weeks, consist of a summer school, followed by a one-week workshop. Each summer school consists of three 2-day mini-courses, taught by teams of internationally renowned researchers. The courses are given by pairs of teachers- made up of a European and an American researcher, giving meaning to the idea of a bridge between the research carried out in the two continents.