Duck and Cover!

Duck and Cover! is a book found in Fallout 3. It is a book containing information about explosives. Reading one of its copies will permanently increase your explosives skill by 1 point. 2 points, if you have the comprehension perk.

Trivia
The book title is possibly a reference to the Fallout fan site, Duck and Cover. Also its a parody on an U.S. 60´s PSA Educational Movie, what to do if you are surprised by a Nuclear Explosion.