WordPress is an open source Content Management System (CMS), allows the users to build dynamic websites and blog. As per an estimate it is a beast that powers 29% of the Internet, and there are over 74.6 million websites that depend on it. Self-hosted WordPress websites account for 20% of that and over 50,000 WordPress websites are launched daily. That means there’s a monstrous market and a lot of work that needs to be done. In short huge demand. With WordPress on your skills list, you can not only launch your own site/blog, but can do development for others to make good funds.
If you are using Windows and the above tutorial doesn’t help you that much, then refer this: https://www.youtube.com/watch?v=jEo-RVOBKCc