Guilty pleasure: I just finished the final book in the horus heresy series (warhammer 40k), and impulsively restarted the series from book 1 again. Its making me sad because I know what all these characters are going to go through again over next 64 books.

But I highly recommend the book "Skunk Works: A Personal Memoir of My Years at Lockheed" by Ben R. Rich and Leo Janos https://www.goodreads.com/en/book/show/101438