Do you know of anyone who has written an autobiography and then a memoir?
When I say "memoir" I mean it as a book about a specific, limited time in someone's life as opposed to the entire story of someone's life.
I ask because I read an autobiography lately that left me wanting to know more about a specific period of the writer's life, a period that they didn't have time to get into in more detail because they had to squeeze their whole life into one book. Would it be silly to suggest to the person that they consider writing a memoir about it? They're a good writer and I'm confident they could do well at it.