Nikola Tesla and You

Nikola Tesla and You is a book in Fallout 3. It can be seen in several locations during the game and sometimes in the loading screen of the game. It contains information about directed energy weapons.

Trivia
Nikola Tesla is the inventor of the Plasma Lamp, a novelty item which was most popular in the 1980's, after his experimentation with high frequency currents in an evacuated glass tube for the purpose of studying high voltage phenomena, but the modern versions were first designed by Bill Parker. Tesla called this invention an inert gas discharge tube.

Looking at the front cover of Nikola Tesla and You, the person to the left is probably a caricature of Nikola Tesla himself. The fact that using the item raises energy weapons skill is also a further nod towards Mr. Tesla.