Its very important for my characte( for RP purposes) to get the bound dagger spellbook as soon as possible while doing as few quests as possible to get it so I dont ruin the game with too much pregame preparation and too many pregame quests getting done, but I cant seem to figure out what quests I need to do or how far I have to get in said quests before I can start unlocking the apprentice selling the spellbooks,any help would b,e greatly appreciated ps, please attribute the bad spelling and awkward grammar to my ps vitas annoying keyboard.

That spellbook is actually sold by Talvas Fathryon.
You can quickly get to the spell without even starting any other Tel Mithryn quests:

Hope that helps

thanks for clearing that up. I appreciate it.