Douglas R. Hofstadter: Gödel, Escher, Bach: An Eternal Golden braid
The Sherlock Holmes canon.

Michel de Montaigne, complete essays (Penguin classics)
Aristotle: Nicomachean ethics.

Bed

Mostly utility prose. I have been a large contributor to the Dutch Wikipedia, working on thousands of articles. I like clear, readable and unambiguous text without any superfluous words.

I have done a considerable amount of professional translation, maybe a million words, but strictly utilitarian prose, medical user manuals etc., from English and German into Dutch. I also read French and Italian.

Non-Fiction: Medicine, Outdoors & Nature, Science

Philip Marlowe. Elizabeth Bennett.

Raymond Chandler. Kingsley Amis. Len Deighton. Jane Austen. Tolkien. John leCarre, the earlier works. Jasper Fforde. Jack Vance. Asimov. Zelazny. Penguin Classics. PG Wodehouse. Richard Dawkins. Terry Pratchett. Larry Niven. William Gibson. Richard Feynman. Robert Graves. Shakespeare. And so many more.