High on Arrival.
This book has everything you could want in a knocked out, true story, tortured daughterhood, druggie tales life....WITH loads of celebrity figureheads as cohorts.
This is a sad true story, but as a person who not seem to change the channel when Celebrity Rehab is on, this book is a page turner.  A good read and certainly not forgettable.

The Dud Avocado by Elaine Dundy is a book which is young, ridiculous and a joy to read.  There's just enough tawdry to overcome the desperate silliness of the character.  She's adorable, selfish and wonderful while finding herself in Paris.
Quote from page 25 "A rowdy bunch on the whole, they were most of them so violently individualistic as to be practically interchangeable."