Full Salvation: As Seen In Bunyan's Pilgrim's Progress (1884) - Paperbackby William Haslam (Author) Full Salvation: As Seen In Bunyans Pilgrims Progress is a book written by William Haslam in 1884. The book is a deep exploration of the concept of salvation as depicted in John Bunyan's iconic work, Pilgrim's Progress. In this book, Haslam uses the characters and events from Pilgrim's Progress to illustrate the different stages of salvation and the challenges that one may face in their journey towards spiritual