How To Make a Reading Lamp from a Hardcover Book by Steve Hoefer (Inventor, CA) & Grathio Labs. It turns off when closed & gives off a variable amount of light depending on how far you open it, up to about a light equivalent.
"Good night - my love hard to believe you can actually dream while you are awake. It is true. I found myself in a beautiful dream and had the tears of happiness to prove it, today. I love you. Sleep well, sweetest dreams, my love.