Magnetic liquids enabled development of new devices and technologies that are a useful alternative to theexisting ones. Many of these applications are still in progress and do not represent any break-through discoveries yet.Nevertheless one may expect that owing to their remarkable qualities magnetic fluids will become in the future a part oforiginal projects. The research of magnetic liquids has a strongly multidisciplinary character. It is thus desirable fortechnicians of different specializations or other specialists (such as physicians, biologists, pharmacists etc.) to be acquaintedwith the qualities and existing applications of these perspective materials.