Falling Out of Fashion by Karen Yampolsky (2007)

I love a roman a clef, and this one, written by Jane Pratt's assistant about "Jill White", her founding of the magazine "Cheeky", and her eponymous magazine is great fun. 

Certainly not well-written by any stretch of the imagination, and its thinly-disguised hero worship can get a little tedious, but it was a fun read, especially if you don't care for Jane Pratt.