This booklet is mainly meant for students at universities and colleges to solve problems in the field of power and chemical engineering, where water and steam are serving as working or process medium. Tables and diagrams will support engineers in research work and industrial practice too. All tabulated values given were recalculated; the thermodynamical properties have been calculated according to the 1984 IAPS formulation, the remaining properties result from IAPSs current releases. The increments for temperature and pressure for the saturation tables were decreased. In addition ten properties were added. Three new h,s-diagrams for compressed water will be useful in geographical and in jet cutting applications.