The Life and Death of Mr. Badman; Presented to the World in a Familiar Dialogue Between Mr. Wiseman and Mr. Attentive is a 1680 book by John Bunyan. It was designed as a companion to The Pilgrim's Progress and was published by Nathaniel Ponder. The two characters have a dialogue about sin and redemption over the course of a long day. (Excerpt from Wikipedia)
John Bunyan; (baptised November 30, 1628 – August 31, 1688) was an English writer and Puritan preacher[1] best remembered as the author of the Christian allegory The Pilgrim's Progress. In addition to The Pilgrim's Progress, Bunyan wrote nearly sixty titles, many of them expanded sermons. (Wikipedia)