What does communication mean for science and teaching? The authors take Ludwig Huber's idea of communication in science didactics a step further. With a descriptive-critical intention, communication of concrete sciences in teaching becomes the object of higher education didactic observation and analysis. The contributions from various disciplines encourage critical questioning of scientific practice and open up the possibility for sciences to develop further through critical self-reflection of their communication. The disciplines involved are biology, chemistry, education, ethics, geography, history, literature, mathematics, medicine, physics, psychology and economics.