If you have ever struggled to explain why design thinking is important, why it is different than other forms of thinking, I can recommend you read “Designerly Ways of Thinking” by Nigel Cross. Since the 1970’s Professor Cross has investigated the evidence for design cognition as an essential aspect of human intelligence and whether design can stand as a third “coherent discipline of study” alongside the sciences and humanities. To avoid being subsumed by these, he suggests that Design needs to establish clear insights into the nature of design activity, behavior and cognition.