I second "The Glass Castle." That book simply amazed me. One of the best books ever. Ever.
I love memoirs OP. I am addicted to them.
My favorites include:
Elizabeth Smart, A Child Called "It", Kris Jenner, Corey Feldman, Rob Lowe, sTORI telling, and Naomi Judd.
The reason I listed the above specifically is because they are juicy and do not hold back.
Oh one more...The one by Madonna's brother is excellent. He tells everything about Madonna in it. Can you say juicy?