The paper is structured as follows. First, wediscuss the demographics of the discourse,how it has grown and what types of literature have been published, followed by the descrip- tion and characteristics of the two main dis- courses, the designerly and the management discourses of design thinking. We identify five sub-discourses of the designerly thinking dis- course and three origins of the management discourse, and critically review their content and contributions. Finally, we discuss relations between the two discourses and suggest pos- sible research directions.