Looking at a screenshot of someones book inventory and it shows 'Invisibility Potion Recipe' in the list and 'Restore Health Potion Recipe'. Also there is a treasure hunters note but it's already been confirmed there are things like treasure maps in the game, just glad to see them

Is it confirmed to be unlike alchemy of the last two games?

Because there were notes floating around in Oblivion that claimed to be recipes. They were mostly just for atmosphere and didn't need them.

It's slightly different in that every ingredient has unknown effects until you either eat them or try to create a potion/poisons with them. So notes may have actual use this time as unless you use the guide/wiki you'll have to keep messing around until you discover the effects you need.

Glad i am getting the guide this could take a long time....

What he said ^^^