[ Please do not top-post. ]
Don't bother. This is one book which is well worth having in paper.
Seriously - you are not likely to regret the expense.
I haven't seen it yet, how about an alternative?
http://www.cs.cf.ac.uk/Dave/C/CE.html
Well... it's not very good, is it? For starters it is very incomplete
where C is concerned; more perniciously,
it teaches a lot (and I mean a
_lot_) of things that are _not_ actually C, but (probably) POSIX. It
does not, AFAICT, distinguish between what is C and what is only
available on Unix. The style of C used is prehistorical, and the style
of the text is dubious. I could pick more nit,
but that should suffice.