"Anyway," she continues after waiting a beat for more questions, "that door over there leads to the Midden—it's the other main entrance besides the one in the Hall of Countenance."
Then she starts leading the way upstairs again. "Your teachers will be Faralda, Drevis Neloren, Phinis Gestor, Tolfdir, Colette Marence, Sergius Turrianus, and Thelsa Andalas. Tolfdir will be your personal mentor—every new group of Apprentices gets a teacher to pay special attention to them—and any general questions about magic or the College should go to him first of all, but you will get to know all of them eventually.
"Each of the teachers specialises in one area of magic—Faralda is the best Destruction specialist in Skyrim, and Tolfdir might be the unsurpassed master of Alteration in all of Tamriel. Use their expertise well, they will be invaluable assets and the College is committed to a philosophy of free exchange of knowledge."
Rather than continuing up the stairs past the ground floor she walks across the Elements entry hall to the eastern sets of stairs. "The stairs we came from lead up to more private offices and personal research laboratories for the teachers, but up this set gets us to the Arcanaeum." They get to a landing that has a map of the continent on a wall, a couple of book cases, an orrery, two doors that presumably lead to the parapets of the walls, but most importantly a large desk behind which sits an aged orc. "This is Urag gro-Shub, our librarian."
The orc looks up at the kids then at Mirabelle. "This the new group?" At Mirabelle's nod he looks at them again and says, "Welcome to the Wizard College of Winterhold, then. If you need help with anything related to the library, or the search for any tomes or scholarly resources, don't hesitate to come to me."
Further upstairs is the library proper, a circular room with tall bookshelves on the walls and tables in the center, both on and around a lowered circular area in the middle, and then the next floor has a closed iron gate leading to "The Private Collection. Our more advanced or perilous tomes are held here. This is not a forbidden part of the library, to be clear; it is only outsiders and Apprentices that are not cleared for full access to it, and Apprentices may ask Urag for tomes that might be here and he will grant access on a case-by-case basis. The school has ranks for its members—Apprentice, Erudite, Scholar, Wizard, Master Wizard, and Archmage, in ascending order of power and responsibility—and any who achieve Erudite rank will be able to open these gates."