Stimulsoft Reports.Wpf uses the reports engine for creating reports which is based on the Stimulsoft Team many years experience of developing and using reporting tools. A couple of code lines may need to execute complex operations with a report. Report engine offers great many abilities for reports creation. Vast kit of components, unique set of properties and parameters, thought over structure of reports. Many of options are absolutely unique and present only in our product. We paid more attention to the speed of reports rendering and complex reports creation.