What are WordPress themes?

According to, themes are collections of files “that work together to produce a graphical interface with an underlying unifying design for a weblog.” In simple, a WordPress theme is what controls the functionality, the look, and the feel of a WordPress website. WordPress themes come in a variety of flavors, from basic, free themes to more complex, premium themes. The key takeaway about WordPress themes for any beginner is that at any moment a WordPress website’s theme may be changed without adversely affecting the actual content of the website.