Explore microstructure modeling techniques using OOF2 and OOF3D in this comprehensive 1-hour 6-minute technical talk by Stephen Langer and Andrew Reid from NIST. Learn about the object-oriented finite element software that combines sophisticated mathematical capabilities with a user-friendly interface tailored for materials science. Discover how to assign material properties to constituent phases of microstructural images, construct finite-element meshes in 2D and 3D, and perform virtual experiments to investigate structure-property relationships. Gain insights into effective properties, basic steps, physics, units, and differences between 2D and 3D modeling. Follow along with multiple demonstrations covering topics such as data file formats, skeleton quality measures, terminology for fields and equations, and computing effective moduli. Access additional resources and information on running OOF2 and OOF3D through provided links.