"Using English in the Rainbow Nation" is a scholarly book that addresses the linguistic changes in South Africa following the end of apartheid in 1994. It highlights the complex linguistic landscape of the country, where eleven official languages are recognized. The author, Martina Anissa Strommer, examines the various sub-variants of South African English spoken by different ethnic groups as their first, second, or foreign language. The book presents the challenges that linguists face in categorizing these language variants and critiques the outdated model of "Three Circles of World English" by Braj B. Kachru. Through the analysis of the political, social, and economic changes over the past two decades, it demonstrates that existing models are no longer sufficient to capture the linguistic reality in South Africa. This book offers valuable insights into the dynamic and diverse linguistic landscape of the new South Africa.