Addings Books of Magic

I found one called Morrigan's book, or was it Moriahs? But didn't see any new spells available for research. Spell level 7 at the time, I guess they are some huge powerful high-level spells! You can also get books like summoning, mastery, combat etc. via magic research.

I encountered on the research tree for magic the gaining of the book of enchantment, the book of summoning, then a higher level of a book of combat (not sure of name but added combat spells and strategic attack spells like earthquake), but haven't seen how you get elements you don't start with. Might be in quests.

I also got (playing as a custom sov for the kingdom side) a book of restoration (I think that's what it was called) through the magic research tree.  Around the same time I got enchantment and summoning.

Just like SuperTimo, I got that Morrigan (or something similar) book from a quest and didn't see any additional spells available. Not fully implemented feature yet?

Indeed, you can get some additional books by researching magic tech tree as well. However, you should also be able to get some from the quests and more could be added via mods. At least that is what I remember by reading some official posts during late beta.

I'm hoping for lots more spells in the future, and am pretty certain that we'll get them Guys at Stardock already promised to add some if I remember correctly, and yes, should be fairly simple to mod some in also (with effects and everything!)