The Lodger Shakespeare: His Life on Silver Street is available in hardcover, paperback, and audio. And can I just add, not that it matters, I love this cover. The cover gods were good to Mr. Nicholls, and he should thank them. Published in the US by Viking Adult.
Note: Since a majority of titles I blog about are written for younger audiences, it seems worth mentioning that this is a work for the adult market. Not that younger readers couldn't enjoy it, but many of them might find the extent of the scholarship to be a barrier.