Amazon have a high opinion of Royal Mail: the book XML in a Nutshell is listed under Items Dispatching Soon, with Delivery estimate: February 26, that is, today. Didn't know that First Class meant same day delivery.

Hopefully I will get the book tomorrow. Should be interesting background reading, and useful in the future. Plus it only cost me the delivery.

Update

Now they've got to the dispatch stage again, and expect it tomorrow. I do hope I'm not stuck in a loop.