Seven illuminating reads which I would recommend unreservedly. In no particular order, they are:
Homage to Catalonia: George Orwell
Spies: Michael Frayn
The Ragged Trousered Philanthropists: Robert Tressell
The Life and Opinions of Tristram Shandy, Gentleman: Laurence Sterne
The World Without Us: Alan Weisman
The Floating Egg; Episodes in the Making of Geology: Roger Osborne
Forced Into Glory: Lerone Bennett Jr.