This document discusses user experience (UX) research and marketing research. It defines UX research as understanding users and the context in which they use products in order to uncover opportunities and understand why things happen from the user's perspective. Marketing research is defined as understanding purchasers and the context of purchase in order to uncover market opportunities and understand what is happening from the company's perspective. The document then outlines different types of research methods that can be used for UX and marketing research like interviews, usability testing, surveys, and analytics reviews. It provides guidance on choosing methods based on the product stage and type of questions being asked.