There’s something rather Victorian feeling about the concept of universal laws – and Peter Atkins rightly recognizes in his introduction that thermodynamics – the subject of this slim volume – is a word that tends to conjure up Victorian images like steam engines and pistons, but there is much more to the four laws of thermodynamics (confusingly starting with the zeroth law) than the answers to all the questions a Victorian engineer might ask. In fact, as Atkins suggests, these laws are an absolute fundamental when it comes to understanding how the universe works, and everyone ought to have a rough idea of what they are about. Apparently C. P. Snow once said “not knowing the second law of thermodynamics is like never having read a work by Shakespeare.” Now, leaving aside the fact that reading much Shakespeare is rather dull (at least compared with watching a Shakespeare play, put on by a decent cast), which I don’t think is what Snow meant, there’s an element of truth here. So a sli