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Column Chart
          A Column chart is used to show comparison among
          a group of values or to display changes in data over
          a period of time. The categories are represented on
          the  horizontal  axis,  and  corresponding  values  are
          represented on the vertical axis.




                                                                     Line Charts
                                                                     A Line chart is used to show trends in data over
                                                                     a period of time such as days, months, quarters,
                                                                     or  years.  In  it,  categories  are  represented  on
                                                                     the  horizontal  axis,  and  the  corresponding
                                                                     values are represented on the vertical axis. It is
                                                                     useful to compare changes in different sets of
                                                                     data over a period of time.

          Pie Charts
          A Pie chart is used to display the relationship of individual
          data values to the sum of all the data values in a given
          series. It represents data in the form of a circle divided
          into various sectors. The size of a sector is proportional to
          the percentage of the data value it represents.





                                                           Bar Chart

                                                           A Bar chart is similar to a column chart, but it represents
                                                           categories on the vertical axis and the data values on the
                                                           horizontal axis. It is used when the values are larger and
                                                           cannot be represented on the vertical axis.




          Area Chart
          An Area chart is used to show the change in data
          values  over  a  period  of  time  and  displays  the
          contribution  of  each  value  to  its  total  value.  It
          represents categories on the horizontal axis and
          data values on the vertical axis. Data values are
          displayed as stacked areas in different colours.




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