Can I buy Vanities(Scholar) more than once?

[陳國光CHEN]

Can I buy Scholar twice and select different knowledge?

Scholar is a Business in Vanities, which comes from Pathfinder Society Primer 28:
Scholar (4 PP): There is more to learn about Golarion than most Pathf inders can conceivably remember, and a scholar who specializes in one particular subject can aid you in this task. The scholar grants you a +2 bonus on checks with one type of Knowledge skill that you choose
when you purchase this vanity, as if he had used the aid another action. Alternatively, the scholar can attempt that Knowledge skill check for you, using a +5 bonus.

[GM Wageslave]

Just remember that while it's great to have the resource, having an army of ninja-scholars tagging along on a mission is highly impractical.

[Agraic]

"Well, hell. Ah r'mb'r bringin' th' Encycl'ped'a Pa'f'nd'rca wi' me on mis'ns i' m' h'v'rsack..."

Agraic bought every available traveling copy of the Pathfinder Chronicles, just in case there was some tidbit that the party might have forgotten when remembering stuff via Knowledge checks. Never had a problem with it, just not the kind of thing that can be pulled out practically in the middle of combat...