The translation of the text of the selections from these two Reformers and the introduction and notes are by Dr. Bromiley, rector of St. Thomas' Episcopal Church, Edinburgh. There is quite an extensive review of the life and work of Zwingli and Bullinger and also a shorter introduction to each selection from their writings. Included are translations of the following works of Zwingli: ""Of the Clarity and Certainty of the Word of God"", ""Of the Education of Youth"", ""Of Baptism"", ""Of the Lord's Supper"", and ""An Exposition of the Faith"". Bullinger's treatise ""Of The Holy Catholic Church"" is also included. An invaluable source book for all students of the Reformation.