People want to know about your business
Your About page is supposed to contain a general overview of your business, as if a blind person has just walked into your business premises and asked you what your business does. What would your answer be?
You should also provide answers to your most frequently-asked-questions. Your online visitors are looking at your web site to see if you can fulfill their needs. If it’s not on your web site they will look elsewhere. If there are more than 4 or 5 questions to answer then consider creating a whole FAQ (Frequently Asked Questions) page to cover them all together.