Powders are a critical component in many products and applications, from pharmaceuticals and catalysts to pigments, food additives and battery development. Their behavior is significantly influenced by intrinsic properties including but not limited to surface area, porosity, and flowability. This seminar is focused on a multifaceted characterization of powders and porous materials to elicit an accurate textural characterization of these materials. We present the concept of surface area, emphasizing its role in adsorption and catalysis; and also discuss porosity and the fraction of void space within the powders and porous materials.   Chemisorption, complementary to both surface area and porosity, provides insight with respect to active sites and applications of catalysts. Finally, powder flow, a critical factor in processing and handling of powders, is presented and how it is influenced by particle size, shape, and surface interactions.   These methods are instrumental for optimizing powder design and processing to improve performance in diverse applications.