This is the name displayed on your profile. It doesn't affect your URL, so you can change it as often as you like to match a mood or holiday.
To keep your blog professional and easy to find, keep these technical and stylistic tips in mind: Nombres para Tumblr
If you wouldn't want someone to yell the name at you across a room to get your attention, it might be too complicated for a username. This is the name displayed on your profile
Complement your name by adding a short description in the "Description" box of the Tumblr theme editor . Nombres para Tumblr
Aim for 12 characters or less so it’s easy for followers to remember.