Fallout: New Vegas skill books

General information
Reading a skill book permanently raises the corresponding skill by three points (four points with the Comprehension perk). Most skill books are identical to the books from Fallout 3, with the exception of The Wasteland Survival Guide, which attributes to the newly added Survival skill, and U.S. Army: 30 Handy Flamethrower Recipes, which was removed because the "Big Guns" skill was merged with "Small Guns" into the new skill "Guns".

Dead Money adds an additional copy to each skill book type, with the exception of Wasteland Survival Guide.

Honest Hearts introduces the Workbench crate, a container with random loot that has a chance of containing various skill books.

Old World Blues adds two copies of Spec Ops. Training Manual, in addition to a new mechanic enabling player to create a single copy of each book at a workbench, using 25 blank books, two tubes of wonderglue and the appropriate recipe.

Types
The number in parentheses indicates the total number of skill books with add-ons included.