What self help books will absolutely definitely improve someone's life? And I don't mean vague advice like "be yurself"
The Magic Mountain
How to Win Friends and Influence People
Epictetus, Evola
L'Éducation Sentimentale
The Stoics
Feeling Good if you have depression
Your Money or Your Life is an essential book on personal finance that I highly recommend to everyone especially if you're American.
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