• "Absorbing, entertaining... provocative but compelling... eminently accessible and enjoyable. A real gas - in short!"

    Robin McKie, Observer
  • "Funny, clever and altogether effervescent... Kean writes superbly about science itself... A joy for any reader"

    James McConnachie, The Sunday Times
  • "There is no denying the pleasure and indeed the wealth of scientific information to be obtained from reading Caesar’s Last Breath. It will change forever the way I think about breathing."

    Financial Times
  • "Kean is the teacher you wish you'd had: genial, companionable and infectiously enthusiastic. This is an entertaining and accessible guide to the mysterious vapour of gases. Popular science at its best."

    Simon Humphreys, Mail on Sunday
  • "It’s a helluva read. And it’s a gas."

    Tim Radford, The Guardian