Clustering aspects of sd shell nuclei studied by AMD

The new clustering aspects of sd-shell nuclei found by the recent application of the antisymmetrized molecular dynamics are reported. In this paper we present two topics, 'superdeformed band of 32S and 16O + 16O clustering' and 'molecular-orbital and di-nuclei states in 22Ne'. In the first topic, it will be shown that the superdeformed band of 32S has a considerable amount of 16O + 16O cluster component, and can be regarded as to belong to a family of the 16O + 16O molecular bands. In the second topic, the presence of the molecularorbital band which has an α + 16O cluster core surrounded by two covalently neutrons is suggested together with an α + 18O di-nuclei band