When shopping for new windows, you may want to review the many styles in addition to the materials, type of glass and other such details. You may not have thought about anything other than the standard single-hung windows, which have a section at the bottom that slides to the top to open, but there are so many other styles to choose from that it's good to compare. Note a few of those styles and how they can enhance the look of a room.
An awning window is hinged at the top, and gets pushed outward to open. This forms a type of awning on the outside of the window itself. This is good for areas where you might get lots of rain, as you can still open the window and enjoy fresh air while getting some protection from that rainfall.
A casement window is one pane of glass that is hinged on the side, and it opens into the home. This is good for maximum air circulation, as the entire window itself opens. Not having a frame in the middle of two panes of glass also allows for an unobstructed view to the outside. However, note that a casement window may get in the way of foot traffic and furniture when it's opened to the inside of the home.
A garden window has sections that jut out to the outside of the home and also has shelves inside the window. These windows are usually smaller and meant for over the kitchen sink or another such area where you might want to keep plants or potted herbs. While they can be very attractive for displays and for allowing sunlight onto your plants, note that the shelves will need to be cleaned along with the windows, so they can involve some added work.
Slider windows are like casement windows except that these slide side-to-side rather than from the bottom to the top. Many come in three or more sections, so that you can slide open either the left or right section or both. This gives you more control over airflow into the room and actually allows in more air if you open both sections. Tall slider windows give you more airflow and circulation from the upper areas of the windows, something you don't get with standard casement windows. This can be good if your home tends to get stuffy and warm, as you can let in more air without having a bigger frame for the window itself.