Biography Princess Diana

Question: What is a good biography of Princess Diana's life?
I DO NOT want the book to be about her death!
100 or more pages is fine, but preferably no more than 300. I want to read about her life before and after marriage/divorce with Prince Charles. Pictures in the biography are great.
Title & author, please.
Answer: I read the one by Kitty Kelly and found it to be pretty good. If I remember correctly, there is a section of photos in it as well.
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Biography: Need to Know: Princess Diana