The methods title() and iconbitmap() of the Tk class are very self-descriptive—the first one sets the window title, whereas the second one takes the path to the icon that is associated to the window.

The geometry() method configures the size of the window with a string that follows the following pattern:

{width}x{height}+{offset_x}+{offset_y}

In case you add more secondary windows to your application, these methods are also available in the Toplevel class.