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The soils around us; soil formation from parent materials; soil classification; soil architecture and physical properties; soil water characteristics and behaviour; roles of soil in the hydrologic cycle; soil air and temperature; soil colloids - their nature and significance; soil reaction - acidity and alkalinity; alkaline and salt-affected soils; soil ecology and organisms; soil organic matter; nitrogen and sulfur economy of soils; soil phosphorus and potassium; micronutrients in soils; practical nutrient management; practical water management and conservation; soil erosion and sediment control; soils and chemical pollution; geographic information about soils; soils and the world's food supply.