The Secrets of Successful Entrepreneurs discussion

Whose books or which specific books are the MUST READS for a start-up entrepreneur, or even an established entrepreneur looking to add new life to a business?
Is there a good list for ideas?
Whose blogs are a must read regularly?

I've been an entrepreneur for over 25 years. I would SERIOUSLY recommend: Rework I wish that book was written when I started! I did everything from a 1986 playbook that is completely outdated today! And honestly, the other is mine: "Making A Microbusiness". I wrote the book I wish I had read.