This is one of the best books on knowing the Holy Spirit and His work, a valuable help to every true disciple. It is written so that, with a little care and patience, anyone can understand it easily. The author follows chiefly the method of biblical theology, tracing the theme of the Holy Spirit book by book, roughly following the historical course of God's revelation — which, to my mind, is the book's greatest strength. May the study of this book, in this 'new day' in which the Promise of the Father is 'with us' and 'in us,' lead many to bear 'much fruit' in the true Vine.