Glad you asked...
There are actually two types of desert biomes: the cold desert biome, and the hot and dry desert biome. Cold desert biomes are found around the Arctic Circle. Hot and dry desert biomes are found between the equator and the tropics of Capricorn and Cancer, but they can also be in temperate zones. You can find more information here:
http://www.blueplanetbiomes.org/desert.h...