Hello, long time lurker here...
I have been working as Unix sysadmin and consultant for ~10 years, and
in the process I have forgotten a bunch of stuff from my University
I was planning on getting some books to study at home, the idea is not
to go too deep into any subject but to get some info that will help me
become a more well-rounded professional.
So, can anybody recommend some good refresher books on:
1) Math in general -- I planned to get Knuth's Concrete Mathematics and
see if I can handle it. Any other recommendations?