  In these lecture notes I discuss an algebraic model of baryons and
pentaquarks, in particular a stringlike collective model is considered in which
the radial excitations of baryons and pentaquarks are interpreted as rotations
and vibrations of the strings. The algebraic structure of the model makes it
possible to derive closed expressions for physical observables, such as masses
and electromagnetic and strong couplings. The model is applied to the mass
spectrum and magnetic moments of baryon resonances of the nucleon and delta
families and to exotic baryons of the theta family. The ground pentaquark is
predicted to have angular momentum and parity J(P)=1/2(-) and a small magnetic
moment of 0.382 nuclear magnetons.
