Back in the days of film, a photographer has to develop their images in the darkroom or have someone else to do it if they want to see how their images turned out. You could not instantly see the image on the back of the camera or your computer. A fair argument can be made that at least during the film days you really had to get it right in camera in order for the image to turn out well.
With the rise of digital technology a lot of those principles in some ways have been lost. Especially with younger photographers, there is a reliance on Photoshop or post processing cleanup any mistakes that may have been made during the initial capture of the image. This becomes the central reason why periodically photographers should get their work printed.
After about my second year of shooting cosplay I got a photo book printed with some of my best cosplay shots of that year. When the book came back I noticed that a few of my images had coloring mistakes, blurry or very soft eyes on my subjects and a number of other issues. Once I saw this I began to take steps to try and fix my work. If I did not get the photo book printed I would not have paid nearly as much attention to those details as I do now.
While I think is better to go with a professional printer it makes a lot of sense to simply go up to your local drugstore and probably for less than a soda you can get a few 4x6s that will give you some insight as a photographer to what you need to work on.
While today's computer monitors can show you a lot of detail and color having a physical copy of one of your images in your hand will give you a better perspective on your work. It doesn't matter whether you are shooting events, fashion, sports or cosplay a print will reveal to you the truth of your work. Some photographers like to compare their prints to the image that they worked on their computers.
Prints are the best way to market to your potential clients. Giving your client a look at what your final product will look like when it is printed on the cover of a magazine or other type of publication is much more telling this sliding through with few photos on your phone or computer. Doing this could potentially give you a leg up on your competition.
Last year at Shutocon a friend of mine who is a cosplay photographer show me his huge portfolio of some of his best cosplay work. It was no wonder that he is able to book so many photo shoots at different anime conventions that he attends during the year. Having his clients see what their final images would look like if they were printed gives its potential clients a better perspective.
Doing things the old way may not "cool" or "up-to date" but it does not necessarily make them wrong.
Write something about yourself. No need to be fancy, just an overview.