User experience design is the process of enhancing user satisfaction by improving the usability, accessibility, and pleasure provided in the interaction between the user and the product. (Source)
UX Design is important in helping a business because making a process easy to follow can influence sales for the company and enhance the overall appeal of the company.
I enjoy UX design because I believe it to be one of the most important elements for a company to establish their brand identity and their look and feel. Their are also many elements that go into the creation of a strong user interface. The figure on the left illustrates this very clearly.
Designing for mobile has become increasingly important. The trend used to be to use a hamburger menu but now other menu types are being embraced because research has shown that it is not clear to many people what it is. Solutions include putting more on one page and having to continue scrolling on one page, and another is to use a button or text navigation. (source)