There is no significant difference between a baking stone and a pizza stone in terms of purpose or usage. The major differences are in material and shape–pizza stones tend to be circular and made from a porous material while the KitchenAid SmartOven+ Baking Stone Attachment is rectangular in shape and has a smooth, glazed, ceramic non-stick surface. You can most certainly use a baking stone to create a pizza, and you can also use a traditional circular pizza stone for baking pita bread, quesadillas, crackers, English muffins and more.