The following ten books will give anyone’s mind a good, solid start. If you haven’t read one or more of these, start here. They are, by nature, popular introductions that package a great deal of knowledge.
Adler, Mortimer. How to Read a Book.
Brown, Colin. Philosophy and the Christian Faith.
Lewis, C.S. Mere Christianity.
Niebuhr, H. Richard. Christ and Culture.
Noll, Mark A. Turning Points.
Packer, J.I. Knowing God.
Schaeffer, Francis. Escape from Reason.
Sire, James. The Universe Next Door.
Stott, John R.W. Basic Christianity.
White, James Emery. Serious Times.