Moonsamy, Sashin2011-07-212011-07-212011-07-21http://hdl.handle.net/10539/10308This thesis reviews the essential ingredients of local, time-independent mixing-length theory, the convective stability of uid elements in the stellar interior, the origins and in uence of convection zones in stars, and the numerical implementation of convection in some popular stellar evolution codes. The thesis concludes with a brief discussion of the future role of mixing-length theory in stellar modelling.enThesis