Services content type will allow you present what you do or what you can offer to your customers. If you add new service, it will automatically activate Services page. You can set Services page as draft, add it to header or footer menu.
You can add except or full content to each service. If you only add excerpt, this service will be visible only on Services page. But if you add also content, this service will have its own detail page visible from the website. It all works automatically, the only thing you need to do is write text and upload an image or select an icon.