Self-education is the most prominent type of education there is. It shows that you are motivated and willing to explore outside the traditional boundaries of a brick-and-mortar classroom. Anyone serious about learning more about a specific topic would be a fool not to utilize the vast array of information found on the web, from e-books to videos, there's no limit to what you can learn.
As a web developer, I'm constantly learning new things and expanding my knowledge. Although I am an instructor here on Udemy, I am still also just a student - as are most other instructors. As Phil Collins once said, and I can't agree with him more, “In learning you will teach, and in teaching you will learn.”