This chapter provides detail description of research approach and design. Chapter has 11 well illustrated diagrams and pictures. Research design types, retrospective vs. prospective design, characteristics of good research design, factorial design, cross sectional design, longitudinal design, Quasi-experimental research, non-experimental research, methods of collecting survey data, evaluation research, qualitative research design and approach are described in detail. 2 tables are added to highlight pre and post-test experimental design.