WordPress is a very simple yet powerful tool. It allows you to create any kind of website you require, whether it be Informational or E-Commerce it can be done using the WordPress CMS.
WordPress is a free and open source blogging tool and a content management system (CMS) based on PHP and MySQL, which runs on a web hosting service. Features include a plug-in architecture and a template system.
WordPress is used by more than 18.9% of the top 10 million websites as of August 2013. WordPress is the most popular blogging system in use on the Web, at more than 60 million websites.
If you use WordPress please feel free to download a user guide I have created on how to login to a WordPress website and how to use WooCommerce if you have an E-Commerce website.