WordPress has come a long way from the beginning, when users had to know how to write code, upload files etc if they wanted to run their own websites. If they wanted to use a different theme, they’d have to use expensive and difficult to learn packages like Dreamweaver which could require understanding of often difficult to grasp languages and code such as HTML and CSS.
With WordPress you have the system to manage the content, and easy to download and install attractive themes (site designs, often adding functionality to WordPress) from sites such as http://wordpress.org. Many themes are free though there are also commercial themes and theme clubs which you can Google for.
What WordPress does is to make possible the building of a semantically structured (ie, with meaning) website or blog which makes the job of search engines easier. It provides an excellent platform for building everything from simple blogs, to significant news platforms.. The biggest limit, usually, is the imagination of the developers and designers creating themes and plugins, and of the content writers.
