Masonry generally refers to working with stone to create walls and buildings. Masons are also called bricklayers as a key component of masonry is to lay brick and bind it with mortar or concrete. Masons may also work with limestone, marble, concrete, granite, and carved or cast stone. The term "masonry" can also refer to the materials used by a mason for building. For example, a bricklayer both performs masonry (by laying stone) and uses masonry (the stone being laid.) Masonry is a form of skilled labor with a long history as a specialized trade. The brick and stone buildings in your town or city were most likely built with by the work of masons.