Ask HN: Books Recommendations?

I just wanted to know what you guys have enjoyed recently, or really any book you'd recommend to the HN crowd. I've currently got:

- Metamagical Themas (Hofstadter)

- The Complete Books of Charles Fort (Fort)

- Heavenly Mathematics (van Brummelen)

- Plane and Spherical Trigonometry (Kells, Kern and Bland)

- Spherical Trigonometry with Naval and Military Applications (Kells, Kern, Bland)

- Moby Dick (Melville)