This document provides an overview of key concepts in developing marketing strategies and plans. It discusses Michael Porter's value chain as a tool for identifying ways to create customer value. It also covers core competencies, strategic business units, the Ansoff matrix for assessing growth opportunities, SWOT analysis, goal formulation, and Porter's generic strategies. Finally, it outlines the typical contents of a marketing plan, including sections for situation analysis, marketing strategy, tactics, financial projections, and implementation controls.