Oliver Heywood (1630-1702) was an English Puritan pastor who was deprived of his pulpit for his Protestant beliefs. He cheerfully endured imprisonment and the confiscation of his worldly possessions so that he might bring the truth of the Gospel to his countrymen. Heywood published this book in 1671 while travelling from town to town preaching, in an itinerant ministry that spanned most of his career.