PhD or Doctor of Philosophy is a postgraduate degree awarded by universities that usually lasts from three up to five years. Graduates with a Doctorate of philosophy 's degree are automatically awarded the academic title of doctor. PHD programs can focus on philosophy but also theology, law, medicine and liberal arts as well. Boys and girls interested in a career as teacher or lecturer tipically decide to start these paths since professors are increasingly being required to have a PhD.
These postgraduate programs with a duration longer than 18 months are usually master degrees and higher education courses designed for students, graduates and young professionals interested in a path that will lead them to a career in management or research. Not all boys and girls who have a bachelor 's or master's degree, are in fact willing to spend more than a year and a half - in some cases up to two years and beyond - for further specialization. These are therefore paths and courses for future managers or researchers who are often required specific skills that can only be acquired with training master programs of long duration.