"Olanna" is a novel by Nigerian author Chimamanda Ngozi Adichie, published in 2006. It tells the story of a young woman named Olanna, who comes from a wealthy family and is educated in the West. The narrative explores her relationships, particularly with her partner Odenigbo, and the impact of the Nigerian Civil War on their lives. The book delves into themes of love, identity, and the complexities of post-colonial Nigeria. It also highlights the struggles faced by characters from different backgrounds, including the effects of class and ethnicity during the tumultuous period of the Biafran War.