The Practice of Piety is a classic of devotional and edification literature that offers readers insight into faith in the early 17th century. The author, Lewis Bayly, urges the reader to contemplate his own position of sinfulness and decay in light of God's grace. The book centers on ways to meditate and pray in the face of death, illness, and the challenges of everyday life. While author's approach may seem anachronistic from the modern point of view, there is much that can still enrich one's spiritual and devotional life today.

Lewis Bayly (died 1631) was a bishop of the Church of England. Bayly's fame rests on his book The Practice of Piety, directing a Christian how to walk that he may please God.