This study is a stylistic analysis of Chimamanda Ngozi Adichie‟s novel Half Of A Yellow Sun, which comprises four parts with a total number of 37 chapters and 433 pages. The aim of this study is to identify the predominant stylistic devices used by the author in the novel and the effects achieved by using them. To achieve this aim, the researcher uses quantitative stylistic analysis which entails the counting and writing down the number of times each device occurs in the selected chapters of the novel. Review of related literature is also done. The researcher chooses this study because Half Of A Yellow Sun is Chimamanda‟s second and most voluminous novel; it is also an award winning novel and not much has been done on the stylistic analysis of the novel. 24 chapters are selected out of the 37 chapters and tables are used to represent the frequency of occurrence of the predominant stylistic devices used in the novel. Random selection sampling was used in parts two and four respectively to select six chapters from each while part one and part three are selected because they have six chapters each and need no random sampling. At the end, the predominant devices found out to be used by Chimamanda are Compound sentences followed by Compound complex sentences, Parenthetical expression, Italics, Transliteration and Code-mixing. It is then recommended that other young writers should adopt Chimamanda‟s style since the aim of studying style is to improve the vigour of one‟s writing.