Are guards still psychic?
Guards still appear in places that I didn't think they would. I was pickpocketing someone in their house and the guard came out of their closet...I nearly fell out of my chair laughing. But no, it's not at all like Oblivion.
Are the books vast and interesting?
I'm on part 6 of the Lusty Argonian...
But yes the amount of reading material in that game can potentially fill up a day in itself.
Did you take a look at crafting? If so what is woodcutting / cooking / smithing like?
Do you get to create your own arrows with materials or are we restricted to buying and finding them only? I'm guessing if you can't chop wood and loot bits of it then it won't be possible.
I did some alchemy, it's pretty neat and it forces you to make potions to find out what ingredients it uses. For instance if I mix A with B and they both happen to have "Frost Resist" it'll make a frost resist potion and from that point on I now know that is one of their four attributes (it shows up on the item).
Smithing I messed around with some, pretty intuitive and looks to be potentially very deep for a crafting system. Lots to make.
Didn't touch Enchanting (didn't have the time to find many magical items tbh) 7 hours in this game is like scratching the surface of an ocean of content.
Didn't do any woodcutting or cooking.