Reality Is Not What It Seems: The Journey to Quantum Gravity (Italian: La realtà non è come ci appare.

La struttura elementare delle cose) is an illustrated[1] book by Italian physicist Carlo Rovelli.

The book's opening chapters trace the history and evolution of quantum gravity.

Starting with pre-socratic philosopher Democritus through to the ideas of Sir Isaac Newton and, eventually, Albert Einstein, Rovelli puts forward a theory that quantum gravity brings great unity to the universe.

Rovelli then states that space and time, waves and particles, energy and matter are all the same.