This document provides an overview of marketing research, including its role in strategic and tactical marketing decisions, sources of marketing information, and the typical marketing research process. It discusses how marketing research can help with segmentation, targeting, positioning, and the 4 Ps. The marketing research process involves identifying an information need, defining objectives, designing methodology, conducting secondary and primary research, analyzing results, and reporting findings to inform marketing actions. The document also covers types of research, ethical considerations, emerging issues like online research and data warehousing/mining.