worldly
- The Worldly Philosophers: The Lives, Times And Ideas Of The Great Economic Thinkers, by Robert L. Heilbroner
- Your Money or Your Life, by Vicki Robin.
- Class, by Paul Fussell
- Closing of the American Mind, by Allan Bloom.
- The Paranoid Style in American Politics, by Richard Hofstadter. Just as cogent now as it was in 1964.
spiritual
- Ryrie Study Bible
- The Thursday Night Tarot: Weekly Talks on the Wisdom of the Major Arcana, by Jason Lotterhand
philosophical
- Meditations, by Marcus Aurelius
- the Little Prince, by Antoine de Saint Exupery
- Mixed Opinions and Aphorisms, Friedrich Nietzsche. Published in “Human, All-too-human”.
- Philosopher’s Alice, by Peter Heath
autobiographical
- Confessions, Jean-Jacques Rousseau
- Confessions, Aleister Crowley
- Etty Hillesum: a Life Transformed, by Etty Hillesum.