This document provides an introduction to the course EDA 811: Concept and Theories of Educational Administration and Planning offered by the National Open University of Nigeria. The course is a core 2-credit course for students pursuing a M.Ed in Administration and Planning. The course aims to expose students to key concepts and theories in educational administration and planning to help them better perform administrative roles in educational settings. The 19 units will cover topics such as the nature of administration, organizational principles and theories, decision making, school administration, educational planning approaches, and the administration of education in Nigeria. Upon completing the course, students should have an understanding of important concepts and theories and be able to apply them to practice administrative tasks and roles in education.