The Martin Luther King Jr. Center for Nonviolent Social Change
In this correspondence to Dr. King, Mr. Mel Arnold of Harper and Row Publishers, referenced that he received notice that Dr. King would be preaching at Riverside Church, in New York City. Mr. Arnold asked whether or not Dr. King would be available for a meal, after his sermon at Riverside. He also thanked him for the additional sermons that had been received, for the preparation of Dr. King's second book.