Crop Yield Response to Water. FAO Irrigation and Drainage Paper 66. By P. Steduto, T. C. Hsiao, E. Fereres and D. Raes. Rome, Italy: Food and Agriculture Organization of the United Nations (2012), pp. 500, US$100.00. ISBN 978-92-5-107274-5. The whole report can be downloaded from: http://www.fao.org/docrep/016/i2800e/i2800e00.htm.