Francis Schaeffer was a Christian apologist whose remarkable breadth of cultural interest and penetrating insights into modern life, led many to a profound spiritual reality. Hans Rookmaaker was an art historian whose Christian insights in art, music and culture had widespread influence. Both had vibrant personalities, striking charisma, and focused on how to engage with reality while creatively living out a relationship with God.
For further reading:
William Edgar, Schaeffer on the Christian Life
Bryan A. Follis, Truth with Love: The Apologetics of Francis Schaeffer
Colin Duriez, Francis Schaeffer: An Authentic Life
Linette Martin, Hans Rookmaaker: A Biography
Laurel Gasque, Art and the Christian Mind: The Life and Work of H.R.Rookmaaker