One-hundred years ago, Einstein solved the elemental mystery of the nature of it is both an electromagnetic wave and a stream of particles. It is a form of energy that moves at a speed of 299.792.458 m/s. It is a medium like no other, and nothing has revolutionized and democratized our world in the way that the control of electric light has.
Read and reading again and again (Altough, I guess for something like this, it is "look at", really.). I love light art, light might actually be my favourite artistic medium. If you like shiny, glowing, wonderful things, then this sure is a book full of those.