Books like Practical Common Lisp
Peter Seibel
Practical Common Lisp is 500 pages, about 9 hours 10 minutes at 250 words a minute.
9 books to read next
How long each takes
Land of Lisp 8.8 h 
Structure and Interpretation of Computer Programs 9.9 h 
Paradigms of Artificial Intelligence 17.4 h 
Common LISPcraft 9.2 h 
ANSI Common Lisp 7.9 h 
On LISP 7.6 h 
Computer Science Distilled 3.3 h 
Programming Perl 11.8 h 
97 Things Every Programmer Should Know 4.7 h Bar height shows length. Estimated at 250 words a minute.