While there are many, many books related to entrepreneurship out there, an author that I would recommend is Robert Kiyosaki. He has not only authored many top selling books, but also produced games, programs and coaching to help get his point across and that provide in my opinion a valuable educational service. His focus is primarily financial, and this has everything to do with YOU and/or how YOU view the financial aspect of your business.
I was initially turned off by the wording of his best selling book Rich Dad Poor Dad, as my goal in life is not to be rich. However, after giving it some thought, I strongly agreed that I would rather be efficient and smart with my resources than foolish and wasteful.
To give you a taste of Koyosaki's philosophy, here is a table that he uses to describe his 'poor dad versus rich dad' comparison:
You can learn more about Robert Kiyosaki and the products/services he offers by visiting his website. If you are familiar with this series, let me know what you think.