fastNLO provides the code to create, fill, read, and evaluate fast interpolation tables of pre-computed coefficients in perturbation theory for observables in hadron-induced processes. This allows fast theory predictions of these observables for arbitrary parton distribution functions (of regular shape), renormalization or factorization scale choices, and/or values of alpha_s(Mz) as e.g. needed in PDF fits or in systematic studies. Very time consuming complete recalculations are thus avoided.