This book looks good from a cursory glance. Can anyone please tell me if I should read this one or Paul Graham's ANSI common lisp. I have some background in scheme due to SICP.
Graham is very clear, concise and readable. Though I liked it, I think it expresses a rather personal view of CL, deliberately excluding parts of the language. Overall PCL is more idiomatic. It's probably better to read them both.
Practical Common Lisp + Land of Lisp + Common Lisp recipes + the Lisp Hyperspec = Profit!
Additional readings: Successful Lisp (Lamkins - very underrated), Paul Graham's books, and Hoyte's Let Over Lambda (advanced).