The article provides detailed information on steam plant operation, covering topics such as boilers, fuel combustion, heating surfaces, pumps, steam engines, and turbines. It includes new material on electric boilers, nuclear steam generators, combustion controls, and air pollution control. The emphasis is on maintenance and operation in steam plants, with updated descriptions on combustion control, feed-water conditioning, and air pollution control. The findings highlight the importance of evaluating boiler performance, utilizing solid wastes as fuel, and controlling boiler water levels and blowdown.