Window treatments are really anything that dress up, cover up, or otherwise can be considered a decorative addition to your windows. This can include blinds, valances, shades, shutters, curtains, even wrought-iron grates. A window is an essential part of every room, and the way you decorate it may influence the mood of the entire room. Your three primary considerations are the amount of light that's let in, style, and color.
The first consideration is how you want it to affect the lighting and other basic requirements, such as privacy, energy efficiency, and architecture. Natural light in a room is crucial, and the way you dress your window determines the color and quality of the light coming in almost as much as the placement and size of the window. You'll want to think about things like, how much light you want to let in, what style you want for the room, coordinating colours for the room, and how to keep the room private, or closed off from the world.
By choosing the correct style for your window treatment, you can create a perfect mood in your room. There are four basic moods you can create in a room just by using the proper window treatments: open and bright; warm and homey; sophisticated and modern; or classic. The function of your room should help you choose the treatment you prefer, as will the mood you want to set in the room.