These three books have a lot of information that will get your new business rolling.
The first book is about getting started. "The Small Business Start-Up Kit" Its a step-by-step legal guide that will walk your through your options and help you to chose the best business structure for you product or service.

The second book is about setting up your business model. "Working for Yourself". It will get you thinking about your three primary business functions; 1) your suppliers, 2) crafting your product or service, 3) and finally delivering to your customers.

The author discusses the "hobby loss" rule and how unprofitable businesses can be denied deductions after three consecutive years of losses. However, Fishman points out that if you can show that you really are trying to make money, losses in excess of the typical three years can be allowed.
The third book is about tax deductions. "Home Business Tax Deductions". This is my favorite book because I use it every year.

The primary benefit of this book is that it gives you the confidence to take the deductions that you deserve and qualify for. Sometimes people simply don’t deduct their expenses because they are afraid of a tax audit. But, this book will give you the confident to take the deductions that you deserve.
Remember, tax evasion is a crime, not tax avoidance. If is perfectly legal to take all legitimate deductions and plan your business purchases to optimize your deductions. You can bet that your competitors will and therefore within carefully planning your deductions your competitors will have an advantage.
If you plan on starting a business in the near future this three books can be very handy.