James Gleick, the science writer who established himself with classics like Chaos: Making a New Science but whose later books, like the important and brilliant The Information: A History, a Theory, a Flood were even better, has announced his next book: Time Travel, due on Sept 27.
William Gibson's read it and loves it. There's precious little about it published yet; Gleick's site notes, "His next book is a history of time travel. It's available in the future." The publisher's page for the book says nothing about it.
I pre-ordered a copy anyway.