Paul Ennis links to his review of Lee Braver’s Heidegger’s Later Writings here. You can find the official site for the book here. I’d not paid much attention to this when it came out – partly due to not having Heidegger as a focus of my work since around 2005, and partly because there can be a bit of an overkill of guidebooks, companions, etc. – but Ennis is positive and it looks worth some attention.