This book is designed to provide a brief outline of Bible truth regarding the Person and work of the Holy Spirit, especially His activity in the life of the believer. Topics include: truths concerning the Holy Spirit of God, heritage rights of children of God in the age of grace, aspects of the experience in believers in relation to the indwelling of the Holy Spirit, the Spirit of God and New Testament Churches of God, a review of gifts in New Testament Churches of God, miraculous gifts of the Holy spirit - neglected or withdrawn?, the 'second blessing': healthful teaching or artificial crisis, gifts of healings, tongues and the interpretation of tongues.