The design of foundations on reinforced soil by columns is discussed within a general framework where several aspects are taken into consideration: modeling of reinforced soil, bearing capacity, settlement, acceleration of consolidation, and improvement of soil characteristics with selected case histories. Unlike existing books on unique improvement techniques (deep soil mixing, stone columns, sand compaction piles) that focus on installation and equipment issues, this one-of-a-kind, full-color guide details the design. It is an important work for all in the geotechnical field, including practitioners, academics, and students.