I've looked and been frustrated as well...you may want to look for a plugin or expansion. Seems like cheating...but...oh well.

Good question.

Been looking. One of my PCs is the Mage Guild Boss and I've gone through all the guilds and House telvani (not easy since they hate me) and can find nothing.

Now when I go into a dungeon I use a low energy "calm humanoid speel" so I can talk to my opponnent to see if they offer training and sell speels. Quite a few of them offer training but only the High Elf enchanter at Indoranyon was offering spells. (so far).

It's either buried deep in the game (in some dungeon on some guy you have to charm) or it just isn't offered at all.

Of course I could have killed him/her already since I didn't start doing this until later in the game when I was able to enchant things...o well...

By the way anyone know how one gets the "Summon Sphere Centurion spell?" My Mage Guild Boss now has it but I can't figure out how...lol...he must have got it from a book since I KNOW he never bought it and he never misses an opportunity to invade the Dwemer ruins. Don't know just one day I was perusing his spells and there it was. heh.

Ok your answer...

Buy Tribunal, the add-on. The spells are there at various places to buy. But all you need to do is buy one and all of them become available for you to make/buy after that.

Whoohoo!!! wait til you see some of the magic items I'm gonna make!!!!

Another way: find all the threads of the webspinner (morag tong quest, special duties). You will get a fortify skill spell, or at least that's what it says here (hadn't finished with it yet):

http://m0use.net/~uesp/morrow/quest/...#sanguineitems

yeah but that takes a while, i think the mages guild has some