Allows the character to read (although even without literacy, character can read skill scrolls, else it would be impossible to gain the skill). Character can identify scrolls, spellbooks, and other literature. As the character gains levels of literacy (by identifying and reading) the character can read more advanced literature.

Identifies books and scrolls around the character.

Not very helpful. Character can “fire” the skill. Which should behave the same as use_skill.