In this lecture, Andrew Kern and Dr. Perrin mention the following books concerning the liberal arts and education:
Liberal Education, by Mark Van Doren (1995), is available for free online at the Internet Archive.
The Abolition of Man, by C. S. Lewis (2015)
Education’s End: Why Our Colleges and Universities Have Given Up on the Meaning of Life, by Anthony T. Kronman (2008)
Norms and Nobility: A Treatise on Education, by David V. Hicks (1999)