This is a perspective grid. These lines stretching out into the sides are Vanishing Points.

Ryan B. asks: do you know how to usea T square to draw buildings and buildings are hard to draw Lue says: I have been experimenting with how to line them up in perspective Ryan: have you put a drawing like that on FB Lue: Perspective is the key to buildings I'd have to think about that! I have some coming up, though the characters go inside a huge structure of unusual design I want it to be "right" though the figures have silly faces. So really, I would look up "perspective" online. To do tall buildings, you emphasize what is furthest away as smaller. You can also do rooftops, which from above would each be evenly spaced squares. The master of drawing superhero action on rooftops is Steve Ditko. Then Ryan says: no i mean you mut show atleast 2 sides of the building when you draw one Lue: ---right, and suggest a third dimension. So it depends on where the "camera" is. If you are next to the character, in a window or on the wall, then the building rece...