Setting up a proper Tumblr blog???

During the last couple of days I have been attempting to set up a Tumblr blog for myself so that I can effectively follow and participate in the De'anic discussions occurring there if I choose to do so. Unfortunately while I think that I have my account set up correctly and just the beginning of a blog going, that is about all that I have. For example many of the tumblr blogs have such things as "about" pages and that sort of thing. I do not have a clue on how those things are created. Is there some sort of Tumblr help on instructions area on line?



Glenn