""Exercises of Piety: Or Meditations on the Principal Doctrines and Duties of Religion"" is a book written by Georg Joachim Zollikofer in 1807. The book contains a series of meditations and reflections on various aspects of religious life, including the nature of God, the importance of prayer, and the meaning of sin and salvation. Zollikofer was a Swiss theologian and preacher who sought to promote a more personal and practical approach to religion,...