Pietro Rimoldi, Yoshihisa Miyata and Ivan Puig Damians from the IGS Technical Committee on Soil Reinforcement (TC-R) illustrate the use of geosynthetics for the function of Reinforcement. They show how geosynthetics can be used for reinforced soil walls, reinforced soil slopes, veneer reinforcement, and basal reinforcement. This presentation is part of the IGS University Online Lecture Series.