There are three main types of laptops: clamshells, convertibles, and ultra books. Clamshells are the typical laptop shape with two panels that open like a book. Convertibles have a single screen that flips around so you can use it in both an upright and a tablet mode. Ultrabooks are the newest type of laptop and have thin, light bodies and large screens. They're perfect for people who travel a lot or work on multiple projects at once.