Interior lightning

Does anyone have any tutorials or advices on interior lightning? How do you set up the lights (what type of lights?). I’m using Blender with Yafray as a renderer. It’s my first time I’m doing it in Blender and I have no idea how to set up the lights correctly. Any feedback apprecieated

you probably will want to use area lamps. note that you can change their effect by scaling them. area lamps are a bit sensitive, though, and might differ somewhat from blender internal, to yafray, so experimentation is reccomended.