Remarkably, many people don't bother to tell me who they are! Why? Because these folks haven’t developed an effective "about" or bio page.
Often when people visit you for the first time, we want to know about you, so it is important to provide background.
How to make a blog "about" page
If you are taking the time to create content, you need to have a great About or Biography page that might include such things as your photo, a bit about who you are (with a focus on your passions), maybe a short biography, perhaps a few affiliations, and anything else you deem important for people to know. You might even do a a short video introduction. Here's my bio page.
Make it easy for people to contact you
You never know who might want to reach you. Sure, you'll likely get a few unwanted messages. But you may get invited to speak at a conference or a request be interviewed by a journalist. So you should include contact information such as an email address.
If you are worried about your email being available on the public web you can cleverly mask it. For example, I sometimes list mine as david (at) DavidMeermanScott (dot) com. Humans know what this means but machines do not.
Avoid the About page template that ships with your blog platform.
The worst About pages tend to be ones where people use the template. Try to avoid this because these frequently force you into categories of information that may not make sense for you like "gender" and "hobbies." Instead, make a page on your blog and create an original About listing.