I wonder how expensive books must be in Equestria. I can't imagine the paper industry to be that advanced..
Fucking magic. Poochie materialized 6 books out of nowhere in the space of like 20 seconds this season.
Yeah, but not all ponies are poochie...
Also, you still have to read books just to get to that level.
Not for specialised magic. If you think about a cutie mark as a trade, then a scholarly cutie mark like Twi's and Glim's is a jack of all trades.