A key theme of this book is that a soil conservation strategy must evolve from detailed knowledge and understanding of actual erosional processes. Thus Chapters 2 to 6 deal with the processes of soil erosion, the assessment of erosion risk at different scales and the monitoring and modelling of erosion. The treatment of modelling in Chapter 6 is particularly comprehensive through discussion of empirical and physically based models, sensitivity analysis and model validation. The inclusion of many worked examples is of great assistance to the reader. The remaining chapters focus on conservation strategies with emphases on crop and vegetation management, soil management and mechanical methods of erosion control. A section dealing with tillage erosion reflects recent research that indicates the potential magnitude of this process. In Chapter 11 Roy Morgan argues that the successful implementation of soil conservation measures is only possible through a combination of scientific, socio-economic and political considerations, exemplified by the highly successful and integrated approach of the Australian Land Care Programme.