Derekh HaMelekh (The Way of the King) is a collection of dated sermons on the weekly Torah portion and on holidays that were delivered by the Piaseczno rebbe, Rabbi Kalonymus Kalman Shapira. These sermons were delivered between the World Wars, in the 1920s and 1930s, and were published from copies made by the rebbe’s students. They were printed alongside other documents, including letters, portions of a planned work called Chovat HaAvreichim, and a description of Rabbi Shapira’s mind-quieting (“hashkata”) technique aimed at calming one’s thoughts in order to connect with God. Like Rabbi Shapira’s other writings, the work expresses emotional and psychological insights and seeks to offer spiritual guidance.