This fourth edition will address the main issues in the dynamic field of catalysis for biorefineries, in fundamental and applied catalysis researches for biomass transformation. Special emphasis will be placed on the utilization of lignocellulosic or algal biomass and non-edible vegetable oils, which do not compete with food. It will be focused on the use of sustainable catalytic methodologies, heterogeneous and homogeneous, including hybrid or dual catalysis.