"Giannis: The Improbable Rise of an NBA MVP" by Mirin Fader tells the story of Giannis Antetokounmpo's journey from a poor, Nigerian immigrant family in Greece to becoming an NBA superstar. The book explores his childhood, the racism he faced, his struggles adjusting to America and the NBA, and his dedication to his family, particularly his younger brothers. It also delves into his complex identity as both Black and Greek, his drive for perfection, and his role as a role model.