@blackbeauty66 Do you mean where can he see what textbooks he needs? He should go to his student center and on the first page there should be a drop down menu with a “Textbooks” option.
As for ordering books, the university bookstore has everything in stock but it’s generally pretty pricey, so I’d recommend Amazon, Half-price books or any other reseller website. Some people choose to rent through Amazon or Chegg. Do NOT ship books to his dorm before he moves in- the hall desks will not receive them. Either buy them before he leaves or after he gets there.
My roommate and I used a personal printer for a semester, then we realized buying new ink was pretty pricey so I just ended up using the computer lab printers anyways. The printing costs aren’t bad at all, and he’ll have access to them 24/7. You’re better off getting a microwave instead.
Here’s a virtual tour of a witte room to give a sense of its size: http://www.housing.wisc.edu/virtual-tours/2016-04-15-sellery-3-window-double-room/tour.html