If you love Dorothy L. Sayers in general and Gaudy Night in particular, you must pop over to friede's online gallery and have a look at this. Really, really splendid stuff.
ETA: And then go and leave a comment for her here.
I'm butting in to answer that they do go in order. I can't recall the order right now, but it's the order they were published.
That said, I should admit that I read the Vane novels first: Strong Poison, Have His Carcase, Gaudy Night, Busman's Honeymoon. They're my favorites still.
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That said, I should admit that I read the Vane novels first: Strong Poison, Have His Carcase, Gaudy Night, Busman's Honeymoon. They're my favorites still.