The French psychoanalyst, Jacques Lacan, wrote: “All I can do is tell the truth. No, that isn’t so - I have missed it. There is no truth that, in passing through awareness, does not lie. But one runs after it all the same.” Now, in this postmodern world, we no longer believe in truth and we have stopped running after it. Absolute truth can never be “known”. It will always evade us. But relative truth is another matter. The three books in this review all consider relative truth even more important to “run after” in this time of climate and political crisis.