Carolly Erickson’s Our Tempestuous Day is a great behind the scenes view of the Regency era that Jane Austen experienced, although it’s true she wrote much of her work before the actual start of the Regency. Erickson’s book doesn’t actually address Austen very often, but you can recognize the Georgian era of Austen’s books very clearly.
I’ve read only a little so far, but I’m quite take with the impressions of Louis Simonds, an American visiting England. His descriptions of London high society makes it sound a hoot and I really appreciate Erickson speaking of the omnipresence of the military. There was that pesky war with France, which puts the appearance of the militia in Meryton in the proper light. A full review will follow.