Research at design schools or research conducted by people with a professional training in design or architecture is not necessarily different from research of for example art history, media studies or anthropology. Nevertheless we see new research topics and new research methodologies emerge as designers begin to employ their professional gaze within the world of research. Research-through-design, practice-based research or design-led research are all among the new labels that characterize such research that strives to bring design competences into play in design research. This book comes out o the XLAB project - one attempt to get hold of what such design research may be and how it can contribute to the production of knowledge. The XLAB project sought to capture design research and particularly the design experiment not through a theoretical or methodological approach, but through a practical exploration of the practice of design researchers. This happened through a series of three one-day workshops with researchers and research students.