Who is the Holy Spirit and how is he at work in the world? These studies, using passages from Paul's Letters, Acts and John's Gospel, help us explore both the person of the Spirit and his transforming, renewing, empowering work. The "Lifebuilder" series has helped millions of people dig deeper into the Bible, individually and in groups. This revised edition features questions for starting group discussions and for meeting God in personal reflection, as well as a "now or later" section in each study.