Since 1945, Marian Press, the publishing apostolate of the Congregation of Marians of the Immaculate Conception, has published and distributed millions of religious books, magazines, brochures, and pamphlets that teach, encourage, and edify Catholics around the world. Marian Press publications promote the ministry and work of the Marians.

Based on Eden Hill in Stockbridge, Massachusetts, Marian Press is best known as the exclusive publisher of the best-selling Diary of Saint Maria Faustina Kowalska and the leading authority of The Divine Mercy message and devotion.