-1.Tabular(Default):Similar to spreadsheet thay consist simpy of an orderd set of fields in columns with each matching record listed in a row.
-2.Summery:simalr to tabular format report but also alow you to group rows of data view subtotals and create chart.
-3.Matrix :Matrix reports allows you to group records both by row and by column.
-4Joined:Joined reports are reports block that different view of your data
