Complex sentence: George Cain (October 27,1943--October 23,2010) was an African American author who was best known for writing the semi-autobiographical book "Blueschild Baby", published in 1970, which chronicles the life of a drug user who finally overcomes his addiction.
Split into simpler sentences: George Cain (October 27,1943--October 23,2010) was an African American author who is renowned for writing "Blueschild Baby", a semi-autobiographical novel published in 1970. The basis of the book is about the life of a drug user who finally overcomes his addiction.