The main objective of this EuroConference is to bring together some of the keynote Community senior scientists and young researchers working in the topic of fine particle magnetism. Magnetic fine particles and related materials (nanostructured and nanocomposited systems) are constituted by magnetic entities of nanometric size, which present new magnetic phenomena (unusual property combination and both enhanced and diminished values of the magnetic properties, with respect to conventional bulk materials). This complex behaviour is related to the importance of size effects, surface properties, shape distribution and interactions among the variety of magnetic nanostructures embedded in the composite material.