Design cognition is a relatively new branch design research. Informed by the cognitive paradigm of psychology it investigates an information based account of design thinking. In the title Exploring Problem Decomposition in Conceptual Design MA Lassi A Liikkanen introduces the principles of design cognition and the attachment of this field to cognitive psychology. The book presents an empirical study of novice designers in a conceptual design task, evaluating the relative importance of problem decomposition in successful idea generation.