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 may be based off of a late 1950's through 1960's short Cold War educational film called "Duck and Cover", a film about a turtle named Bert, who would duck and cover during the sign of any danger.

The film was presented to students in classroom's across the states to teach kids what to do in the event of a nuclear attack on the United States.

When fleeing, NPCs do the exact same motions as recommended in the Cold war "Duck and Cover" film.

In the GNR radio drama about Herbert "Daring" Dashwood, when the titular character and a slaver-in-incognito witnesses Argyle reverse-pickpocket a grenade onto a Super Mutant, Dashwood cries "DUCK AND COVER!" before the grenade explodes, killing the mutant.