Birkbeck, University of London (formerly Birkbeck College, informally BBK), is a public research university located in London, United Kingdom, which specialises in evening higher education, and a constituent college of the federal University of London.It offers many Master's and Bachelor's degree programmes that can be studied either part-time or full-time, though nearly all teaching is in the evening. It also admits full-time (as well as part-time) students for PhDs. Its staff members have excellent research reputations in subjects such as English, Economics, Statistics, History, History of Art, Philosophy, Psychology, Spanish and Science. It also offers many continuing education courses leading to certificates and diplomas, foundation degrees as well as other short courses. Birkbeck counts four Nobel prize winners and a British Prime Minister among its former students and faculty.