The focus of this Symposium is to discuss innovative approaches to develop, characterize and apply porous ceramics with a high volume of tailored porosity, ranging in size from Angstroms to millimeters. These porous ceramics include high surface and cellular architectures such as honeycombs, foams, hollow fibers, fiber networks, membranes, nano-, micro- and meso-porous materials, monoliths and coatings possessing hierarchical porosity, as well as structures produced by additive manufacturing technologies or the replication of biological templates. Such porous components can find use in a wide range of emerging applications in environmental protection, water purification, energy production and saving, molecular scale sensing, optical devices and a number of advanced industrial applications.