In this section, we are going to create a population map of the Brooklyn borough. Make sure that in the main window, the following layers are active:
Brooklyn borough boundaries,
zipcode (with the population style),
NY borough boundaries, and
To add a map to your print layout, click on the Add new map button in the Composer Items toolbar, and drag the mouse arrow diagonally over the page while holding down the left mouse button. You will see a rectangle drawn on the page and a map inside it.
Note that the content of the map changes dynamically to reflect the content of the map canvas in the main window. ...