The document provides an introduction and overview of marketing research. It defines marketing research as the systematic and objective process of generating information to aid in marketing decisions. It outlines the marketing research process, which includes defining the problem, developing an approach, designing a research methodology and questionnaire, conducting fieldwork, analyzing data, and presenting findings. It also discusses different types of marketing research, including basic and applied research. Basic research expands knowledge, while applied research helps solve specific problems. The document emphasizes that marketing research is a tool to help marketing managers identify opportunities, analyze market segments and target markets, implement marketing mixes, and analyze performance, but is not a replacement for managerial judgement.