If there is anyone worthy of producing an intimate biography of the enigmatic genius behind ''Remembrance of Things Past,'' it is Edmund White, himself an award- winning writer for whom Marcel Proust has long been an obsession. White introduces us not only to the recluse endlessly rewriting his one massive work through the night, but also the darling of Parisian salons, the grasper after honors, and the closeted homosexual-a subject this book is the first to explore openly. From the frothiest gossip to the deepest angst, here is a moving portrait to be treasured by anyone looking for an introduction to this literary icon.