Confusion, time travel, something else?
I notice from various blogs that Practical Common Lisp is close to being released. Because of this I popped over to Amazon UK with a view to seeing if it'll be available via them and how much it'll cost. Interestingly, as of the time of writing, it suggests that it is available but "hard-to-find". It seems to suggest that the book was released September 30, 2004.
Compare and contrast with Amazon.com where it tells use that the book "has not yet been released".