Zief and Gleeson library books on the process in general, and on the nominations of specific justices. [The search string is: "United States Supreme Court" Judges "Selection and Appointment"]
What About Past Nominations?
These two sources — one for the USF community, and one free — have hearings from previous Supreme Court confirmation hearings.
Use the "Browse-by-Justice" option to see relevant documents related to that Justice — including nomination hearing transcripts, links to articles, and a bibliography of other works. (For USF faculty, students, and staff.)