It's not just a book. It's a Manual
There's many different layers to the art of business. Mr Franzese's "I'LL MAKE YOU AN OFFER YOU CAN'T REFUSE" breaks down different approaches, along with the pros and cons. He uses personal experience along with his observation of others to better explain the ins, outs, styles and results of business practices.
If you have plans on starting, continuing operate a business, I recommend adding this appliance to your tool bag. If you wish to do business as an employee or an independent contractor you can use this book as a guide to better understand what's going on around you.