If you like my stuff, keep an eye out for my new Bitcoin book, which will be coming out this fall. I've been slaving over the artwork for months, it should be a beautiful book! The working title is "Bitcoins for the Befuddled".
I only wish someone would do a similar "Land of C" book some day :-)
(and I think it would be a missed opportunity to not title it "Sea of C")
I love that the author chose to expose readers to core, foundational concepts through example programs that were continually improved instead of using lots of throwaway one-off examples.
Put differently, the author managed to ensure that readers that diligently followed through from beginning to end would gain a real sense of progression as they went through the material.
The only complaint I really have so far is Chapter 11 -- but that's not really the author's fault; that's just the terrifyingly mind-numbing formatting functionality (Common?) Lisp offers.
I read five great books on Common Lisp.
Intro level: ANSI Common Lisp (by our very own PG), Practical Common Lisp, and Land of Lisp. Can't go wrong with any of them, but LoL has art and humor.
Advanced level: On Lisp (again, PG), and Let Over Lambda (a bit rougher around the edges, opinionated, but full of clever programming tricks).
I don't know the current status of it.