Does the library have books on reparations for blacks?
COM Library does have some books on reparations. To view them, follow the link to WorldCat below and search for reparations. Two books are available that are specifically about reparations.
If you are looking for more materials on the subject, you could broaden your search by searching WorldCat for United States race relations. This will retrieve books that do not focus specifically on reparations but nonetheless may contain some information on the subject.