From 15th to 19th of October, the Citizen Science Summer School "Citizen Science in Theory and Practice" took place in "Grünau im Almtal", a small town in the south of Upper Austria. Grünau is particular famous for the KLF, the "Konrad Lorenz Reseach Station" where zoologist and Nobel Prize winner Konrad Lorenz studied animal behavior and became one of the founders of modern ethology. Not far from the research station, a whole week was dedicated to Citizen Science and many interesting workshops, sessions and collaboration teamwork took place.