[hpoe]

Man's Search for Meaning - Viktor Frankel, it is his experience of how he managed to survive the concentration camps.

Book of Mormon

The Stormlight Archive series (Way of Kings, Words of Radience, Oathbringer) - Brandon Sanderson, I've heard it compared to the Kingkiller Chronicles in terms of depth, intricacies and overall masterfully executed plot but Sanderson is also one of the best authors at making characters real and captivating that I've ever met.

Mistborn Series (The Final Empire, Well of Ascension, Hero of Ages) by the same author as The Stormlight Archives and for the same reasons.

The Screwtape Letters - C.S. Lewis, even if you aren't religious it has helped me see so much clearly the tactics and obstacles that prevent me from being the person I want to be.

I've read quite a few more books more often but these are the books that I have reread multiple times because they have changed who I am and helped me recognize that each time I fall I can rise again a better man.