Bachelor’s Degree or baccalaureate diploma is an undergraduate educational diploma presented by colleges and universities at the completion of a three- to six-year journey. The two most common bachelor’s ranges are the Bachelor of Arts and the Bachelor of Science. In some educational establishments and structures, certain bachelor’s levels can only be taken as postgraduate or graduate education after a first diploma has been completed, despite the fact that, generally, successful completion of a bachelor’s degree is a prerequisite for similar courses consisting of an understanding or a doctorate.