My Life in Prison (2004) is the third novel in John Kiriamiti's Kenyan crime fiction series, following My Life as a Criminal, and My Life with a Criminal: Milly's Story. This series is loosely based on Kiriamiti's experiences as a young criminal in Nairobi, and was written mainly whilst he was in prison for robbery. The events in the book are narrated against the background of an alleged incident of brutality by warders, on the prisoners, at Naivasha Maximum Security Prison on 24 April 1972. This book, the best-selling Kenyan novel of all time, is currently being adapted into a film.