Also , at the top of the Materials page, if you click on the  rounded bar at the top left of the page, labelled Basic material editor, it will take you to a page with 3 black boxes labelled Color, Bump, and Transparancy. There you can do the same things, but in addition ,on the Bump Panel you can, once activated, click on Use color map, and it will use your Color map as a Bump map. Very handy that is. Ditto for transparency if you need it. Mapping types are on the top right of that page in a Drop Down list.

 

Once in a while I look around,
I see a sound
and try to write it down
Sometimes they come out very soft
Tinkling light sound
The Sun comes up again