Right now the spellbook is a confusing thing.  One thing that would help a lot is if the spellbook would open to the page that is most appropriate based on how you got there.  If you clicked on the spell research button then you should be looking at the spells that are available to learn and the ones you are currently learning.  Don't show me the spells I already know.  If I get here because I pressed on the spellbook of my sovereign then I am probably getting ready to cast a spell.  Show me the spells I know, I don't care about the spells I am learning or could one day know at this point.

It's still might be nice to have these pages available though.  Just don't bring them to me initially.

Also it really bugs me that when I get to the spellbook from the dialog that appears asking if I want to learn a new level or go to the spellbook that there is no learn button.  I don't care about casting, I'm trying to learn new spells so give me my learn button.