That wasn't the dust jacket. It was part of the press kit prepared by his agent.
There are videos of Obozo’s grandmother stating categorically he was born in Nairobi, Kenya, she knows because she witnessed his birth.
Audio. It wasn't his grandmother and that wasn't what she said. That was the interviewer putting words in her mouth. It would have been crazy (and crazy expensive) for Barack Sr to bring his pregnant wife to his birth village where she could meet his other wife.