Thes paper presents the general properties of ferroic materials (crystals, ceramics). Ferroics is the general term covering ferromagnetic materials (FM), ferroelectric materials (FE) and ferroelastic materials (FES). Those three groups of materials are called "simple primary ferroics". Ferroelasticity is the mechanical or elastic analogue for ferromagnetism and ferroelectricity. The materials which exhibit both ferroelectric (FE) and ferroelastic (FES) properties are described as ferroelastoelectrics (FE+FES=FESE). The ferroics (FM, FE, FES) and ferroelastoelectrics (FE+FES) belong to smart family materials. They are defined as materials which have some properties that can be altered and controlled by external stimuli (magnetic, electric, mechanical, thermal). Smart materials can be used in many technology fields such as automation, control process, robotics, material processing, aerospace engineering, automotive and electronic industry, defense technology, medical technology and biotechnology.