Book excerpt: The following is just a selection of the contents - Theory and design related to the performance of reinforced soil structures - A study of the influence of soil on the reinforcement load in polymer grid reinforced soil structures - Cellular retaining walls reinforced by geosynthetics:behaviour and design - The results of pull out tests caried out in PFA on a reinforced and unreinforced soil walls - In-situ techniques of reinforced soil - Design and field test on reinforced cut slope - Reinforcing a sand slope surrorting a footing using steel bars - Discussion of papers in session 4 - Effect of reinforcement in embankment - Session Summary