To add to what has been said, I would say that if you are at all interested in how the Kingdom of God influences culture and society, I would recommend the triology. He begins with a lot on the doctrines of revelation and expounds outwardly from there. He would be a great resource to add on to the works of Carl Henry and Charles Taylor. Shoot, between those three you have a seminary degree in the subjects of intellectual thought, culture, and Christianity.
The Francis A. Schaeffer Trilogy: Three Essential Books in One Volume https://www.amazon.com/dp/0891075615/ref=cm_sw_r_cp_api_glt_fabc_PEVWQMD0KJNDFZ0NCEZ9
Schaeffer was a student of Van Til and his work is very enlightening