This document discusses dualism, development thinking, planning, and why planning is needed in developing countries. It begins by outlining the main assumptions of dualism theory, including that traditional and modern sectors develop separately with little interaction. It then discusses definitions of planning and reasons why planning is important in developing contexts, such as rapid population growth, resource scarcity, and poverty. As an example, issues around development in Nigeria are described. The document also provides an overview of strategic planning processes and gives an example strategic plan for a local mineral water organization.