Summary: Ramanujan made significant contributions to mathematics, and his work is a topic of interest for many mathematicians. This book by G.H. Hardy provides insights into Ramanujan's life, work, and impact on the field of mathematics. The lectures offer a unique perspective on Ramanujan's achievements, discussing his mathematical discoveries, interactions with other mathematicians, and the challenges he faced. Hardy explores the complexities of Ramanujan's work, highlighting its originality and significance in the mathematical community. The book delves into Ramanujan's remarkable abilities, original theorems, and profound insights, shedding light on his genius and contributions to the field of mathematics. Hardy's analysis offers valuable insights into the life and work of this legendary Indian mathematician, providing a comprehensive overview of Ramanujan's legacy in mathematics.