African literature comes in both written and oral forms, and has been influenced by colonialism and post-colonialism. It reflects the stories of Africans both past and present. Some key characteristics are that it is often meant to be both educational and entertaining, and covers the experiences of Africans before, during, and after colonial rule. The types of African literature can be divided into oral literature, pre-colonial literature, colonial literature, and post-colonial literature. Some famous African writers discussed are Chinua Achebe, Chimamanda Ngozi Adichie, Ayi Kwei Armah, and Ngugi wa Thiong'o.