As the complex societal and technological challenges of the 21st century cannot be addressed by solutions from just one field of expertise, academics are increasingly expected to cross the disciplinary boundaries. 'Interdisciplinary Learning Activities' contains concrete suggestions in the form of examples of learning activities that university teachers can use to teach and foster interdisciplinary skills in graduate and undergraduate students. These skills for interdisciplinary understanding include critical thinking, collaboration, and reflection. Socratic style questioning, Breaking news, The Walt Disney strategy, and The interdisciplinary shuttle are just four examples of the 32 interdisciplinary learning activities for workshops, courses and curricula that are shared by university teachers in this handbook. Incorporating these activities into education will contribute to creating a challenging, engaging and successful learning environment.