The Pilgrim's Progress by John Bunyan

A man with a burden on his back leaves the City of Destruction and walks: through the Slough of Despond, past Apollyon, through Vanity Fair, to the river he must cross alone. Bunyan gave each moral condition an address and a road, and the plainness of the telling is why the book outlived the theology it was built to carry. Accompanied here by period paintings, with ornament drawn from the pilgrim's staff, the scroll and the far mountain — a Gilded Library edition of the most walked-in allegory in English.