Ralph G. Brockett & Roger Hiemstra 
Self-direction in Adult Learning [PDF ebook] 
Perspectives on Theory, Research and Practice

Originally published in 1991, this book provides the reader with a comprehensive synthesis of developments, issues and practices related to a self-direction in learning. it presents strategies for facilitating self-directed learning as an instructional method and for enhancing learner self-direction as an aspect of adult personality. The idea of self-directed learning is not a new one but has received renewed attention in education circles and has particular significance for the adult education sector.