[abudabi123]

I recommend the gentle introduction to Lisp book for the complete beginner.

The chapter on files in the Practical Common Lisp book wasn't complete enough for me to read a one line file of 800MB which is part of the Harvard Library Open Metadata archived set.

[parenthesis]

I'm assuming you mean Touretzky's Common Lisp: A Gentle Introduction to Symbolic Computation —

http://www.cs.cmu.edu/~dst/LispBook/index.html

— which, yes, is a wonderful book for a complete beginner.