Structure Functions

The latest structure function results, as presented at the ICHEP98 conference, are reviewed. A brief introduction to the formalism and the status of global analyses of parton distributions is given. The review focuses on three experimental areas: fixed-target results and their constraints on the parton densities at high $x$; spin structure and spin parton densities as well as the status of the associated sum rules; HERA results on the dynamics of $F_2$ at low $(x,Q^2)$, charm and $F_L$ as well as the measurement and interpretation of the high-$Q^2$ neutral and charged current cross-sections.