Requirements: Level 4, Intelligence 4
Benefit: With the Comprehension perk, you gain one additional skill point whenever a skill book is read.
In New Vegas skill magazines also give double the skill boost, +20 instead of +10.
If you plan on collecting skill books this perk is a must have (get it early game before reading any books). In New Vegas there are a minimum of 4 skill books per skill (Science has 5 books), plus an additional book per skill in the Dead Money DLC. Without the DLC Comprehension adds 4points per skill if you get every book in the game.