Grace Abounding to the Chief of Sinners is one of the great classic autobiographies, part of the Christian tradition of testimony from The Confessions of St. Augustine to Corrie Ten Boom's The Hiding Place. In Grace Abounding, John Bunyan (1628?1688), the author of Pilgrim's Progress, describes his conviction of sin, his struggles against unbelief, his entrance into the meaning and comfort of the Holy Scriptures, and much more.