The Pilgrim's Progress: A Readable Modern-Day Version of John Bunyan’s Pilgrim’s Progress (Revised and easy-to-read) (The Pilgrim's Progress Series Book 1) Carefully revised in modern English, this modern classic includes Bunyan's original scripture references plus hundreds of additional references, chapter end-notes to help clarify scriptural and historical references, and an Index of words, meanings, titles, characters, and places. 50+ illustrations. Free audio excerpt download.