[en] We discuss the perturbative QCD approach for the exclusive two body B-meson decays to light mesons. We briefly review its ingredients and some important theoretical issues on factorization approach. We show numerical results which are compatible with present experimental data for the charmless B-meson decays. Specially we predict the possibility of large direct CP violation effects in B⁰ → π⁺π^- (23 ± 7%) and B⁰ → K⁺π^- (-17 ± 5%). In the last section we investigate two methods to determine the weak phases φ₂ and φ₃ from B → ππ, Kπ processes. We obtain bounds on φ₂ and φ₃ from present experimental measurements. (author)