Recent results from HERMES

The study of the spin structure of the nucleon is the primary goal of the HERMES experiment. In 1995, the first year of the experiment, the neutron structure function g1n was measured using a polarised 3He target. Additionally, semi-inclusive hadron and pion asymmetries were extracted from 3He. In 1996/97 a polarised hydrogen target was employed and preliminary results of the inclusive asymmetry as well as semi-inclusive hadron and pion asymmetries are presented. Preliminary results from the HERMES unpolarized physics program are shown including the valence quark distribution ratio dv(x)/uv(x), the flavour asymmetry of the light quark sea, measurements of fragmentation functions and the decay angular distributions of ρ0 mesons produced in exclusive deep inelastic electro-production. (author)