Evidence-based design is an informed approach to design that intentionally bases decisions on quantitative and qualitative research. It is systematic inquiry that not only creates knowledge but also solves design problems. This text looks at both residential and commercial spaces and provides a basis for research and investigation prior to sketching or developing drawings. It focuses on research that will take place in a library with books, scholarly journals, trade magazines and other periodicals or through the Internet as important resources. What differentiates this textbook from traditional research text books is that the precedents, key terms/concepts, case studies, questions, problems, and surveys all relate to interior design, so that student's learn not only how to conduct research and report the findings, but how to apply the findings to the design solution. And as the quality of the design solution depends on the quality of research, the students' understanding of what and how to research topics relevant to a particular design project is vital. Chapters include learning objectives, key terms and research related terminology, summary and resources such as books, periodical and journal articles, online resources and case studies written by contributors in the specific areas. Appendices include examples of surveys and questionnaires. Projects include aspects of evidence-based design problems at various intervals of the book and conclude with a comprehensive project that will incorporate the research and application of evidence-based design. Tables, charts, illustrations, floor plans, and photographs provide a visual understanding of each aspect of the design process. Instructor's manual includes course outlines, study questions, possible test questions, online activities, and project ideas. Power Point Presentation available.