What a Wonderful World: One Man's Attempt to Explain the Big Stuff by Marcus Chown
Why do we breathe? What is money? Does time really exist?
Like a kind of physics-based David Attenborough series, this is a book about the whole world but chooses a selection of the really interesting bits, and makes them clear and understandable.
Marcus Chown, bestselling author of Quantum Theory Cannot Hurt You and the Solar System app, boils down extremely complex processes to answer simple questions about the workings of our everyday lives.
Witty and hugely entertaining.