How to Add About Me on Tumblr
Tumblr is micro-blogging website that allows you to post and share texts, photos, audios, videos and links on the web. When signing up for a Tumblr account, you have to create a URL that you can share with other people to enable them to access your Tumblr page. You can customize a number of aspects of your Tumblr account, including changing the theme and colors used on your Tumblr page, adding a profile photo and adding a self description (About Me).
Log in to your Tumblr account and then click "Customize" on the left side of the Tumblr webpage.
Click "Info" at top of the customize webpage that opens.
Type the "About Me" content that you want to add in the "Description" box.
Click "Save + Close" at top-right side of the customize webpage.