Educational Leadership in Tanzanian Secondary Schools: Research, theory and practice is a book with twelve chapters. chapter one is about Tanzanian education system. Chapter two examines about the theories of leadership. Chapter three is on emotional intelligence (EI). Chapter four examines the concept of effectiveness as to how is related to school leadership, mainly heads of school. The concept of middle-leadership and different role performed by middle leaders is described in chapter five. Two important concepts basing on planning are covered in chapter six: strategic planning and strategic intent. Chapter seven explains the concept of culture in educational context. Educational change is subject discussed at length in chapter eight. Chapter nine is about school heads and their role on the quality education in schools. The alternatives methods for capacity building of school leaders in Tanzania are discussed at length in chapter ten. Chapter eleven is about preparation and development of women into educational leadership. Lastly, chapter twelve summarizes the eleven chapters on school leadership.