While there are some books which are quite good and I do recommend them, there are also a few of them which are quite dubious to say at least.

Finance gets skipped too many times too often in discussions like these. Forget Robert Kiyosaki and Brian Tracy for finance books, they are reserved for the "self-help" section.

What I definitely recommend is "Financial Intelligence for Entrepreneurs" and "Simple Numbers, Straight Talk, Big Profits" as some of the pillars for startup finances.