Uromastyx require an enclosure including a heat source and special lighting, and a vegetarian diet. A good book to get is Uromastyx Complete Herp Care by John F. Taylor.
A large enclosure, with good ventilation, and good heating are essential. They are desert dwellers, so sand (for adults) is a good substrate, and they are primarily herbivorous.
A Uromastyx has very specialized care for a lizard. They are exclusive herbevore, and need to eat seeds which is very rare among lizards. And require very hot terrariums to mimic their native Sudan. 120F in the hotspot.
