Please write an essay on the thematic and stylistic trajectory of African art, comparing and contrasting certain aspects of the traditional and contemporary forms of artistic expression and representation. Your essay should be at most 4 pages, typed and double-spaced. 

Pay attention to grammar, spelling and smooth flow of your ideas. Your paper should demonstrate superior understanding of the subject, with every paragraph transitioning from one idea to the next. Since this is an open-book exams, you are allowed to use whatever sources you please, including materials provided by the professor on blackboard, as long as you cite and include them in the bibliography or reference at the end of the essay.