Pre-War Book (Fallout 3)

A pre-War book is a book that has not been destroyed, burned, or otherwise rendered unreadable. It is a fairly rare miscellaneous item.

Characteristics
Pre-War books in the Capital Wasteland come in two different versions, green and rare blue. Aside from use as Rock-It Launcher ammunition, the green books are desired by the Brotherhood of Steel. Specifically, the Brotherhood Scribe Yearling, located within the Arlington Library, who will reward you with 10 XP and 100 bottle caps per book for contributing these to their archives.

Locations
G.E.C.K. shows that there are 110 pre-War books ("BookGeneric01") in the game, more are added with add-ons. The links below often tell you where to find them:

Related quests

 * Yearning for Learning - green variant.

Bugs
Carrying more than 99 pre-War books and telling Scribe Yearling "just take all the books I have" will cause her to take only 99 books, yet give you caps and XP for all the books you carry. For example, carrying 110 pre-War books and giving them all to the scribe leaves you with 1100 XP, 11000 caps and 11 books left.