Aiden Wilson Tozer (April 21, 1897 – May 12, 1963) was an American Christian pastor, preacher, author, magazine editor, and spiritual mentor. For his work, he received two honorary doctorate degrees. Prayer was of vital personal importance for Tozer. Among the more than 40 books that he authored, at least two are regarded as Christian classics: The Pursuit of God and The Knowledge of the Holy. His books impress on the reader the possibility and necessity for a deeper relationship with God.