I’ve recently finished reading Guy Kawasaki’s book on (mostly) business startups called The Art Of The Start. 
This is a pretty good book for people trying to get a business started as Guy talks about a lot of issues: raising money, gathering a team, etc.
I’ve never had the opportunity to read any of his other books, but he’s a great writer. Very easy to understand and nothing should pass over anyone’s head.
Although I’m not in the situation myself, he has an excellent chapter for people starting a business while they are currently at a job.
[...] book will help you make cash. Period. It compliments the previous book I mentioned on my blog, The Art of the Start, very [...]