Fiction: A Little Life, not about technology but a very eye-opening set of perspectives I've never read before. Cried on the El twice while reading it.

Nonfiction: Master of the Senate by Rob Caro. Lyndon Johnson's years in the senate (1949-1960) with an incredibly rich historical backdrop and detail. Caro is known for writing about power and how powerful people have wielded it, and this is a master work. Paints a very human picture of an extremely effective politician.