A must read for anyone who desires a comprehensive understanding of the work of the Holy Spirit. This resource will assist any professional clergy or layman in their pursuit of knowledge concerning the Trinitarian doctrine, it will inspire all serious believers and provide a thorough biblical perspective of the Holy Spirit both in the old and new testament while addressing some of the most difficult eschatological questions of the end times. A powerful tool that will enhance personal and group study. Bishop Derrick W. Hutchins. The Holy Spirit is still working in the hearts of the believers, convicting mankind of sin, causing repentance; regenerating, sanctifying and equipping for service. The Author of this book Veronica O'Brien is an Anointed Woman of God who has been ministering in different parts of the world through Radio Programs, platforms and in other intimate settings. She is a graduate of University of the West Indies (School of Continuing Studies), Jamaica School of Business, Creative Production Training Institute, North Birmingham College and European Theological Seminary. A leader in her own rights having completed The 21 Laws of Leadership (John Maxwell) living a lifestyle of prayer, she enjoys studying the Word of God and sharing her faith. She is passionate about the Work of the Holy Spirit and is confident that His Work is still being manifested in the world today and did not cease in the Upper Room as demonstrated in the Book of Acts.