To accurately capture nonadiabatic effects, a full quantum mechanical treatment of both the electronic and nuclear degrees of freedom is necessary. However, such a treatment is computationally prohibitive even for systems with moderate sizes (∼ 50-100 atoms). To circumvent this computational burden, only the electrons are treated quantum mechanically, and the nuclear motion is described classically. Among these so-called "mixed quantumclassical" approaches, the Fewest-Switches Surface-Hopping (FSSH) method is one of the most popular methods, and in this review, we use it to study the nonadiabatic electron dynamics in organic systems.