Business Books are part of the non-fiction genre. Generally, they are about the management and running of a business, or in the financial aspects of a business.
Titles in this genre include how-to, step-by-step instructions about things one would need to know to start, own, and run a successful business, touching on marketing, taxes, and other aspects of business management. Unlike How To Advice, which covers all areas of how to do things and advice on a wide range of topics, Business Books focus on the advice and help needed for starting and running a business.