To find books and articles ABOUT a specific person, do a subject search for the person's name in JumpStart (be sure to Sign In to JumpStart).
The library has many books (print and online) on various subfields of philosophy, philosophy arising from geographic areas (countries, regions), philosophical traditions, philosophy in particular historical periods. These books often include information on specific philosophers. Use keywords relevant to your broad topic to search the library catalog. Ask a librarian if you need assistance.