The C Programming Language
(amazon blurb)
Just about every C programmer I respect learned C from this book. Unlike
many of the 1,000 page doorstops stuffed with CD-ROMs that have become
popular, this volume is concise and powerful (if somewhat dangerous)
-- like C itself. And it was written by Kernighan himself. Need we say
more?
I owned the original of this classic (and may still, but I haven't seen it lately). But it's time to upgrade, so this item is on My Wishlist