On Excel XP, the column widths when graphing values has a
problem when the x-axis labels are a date format.  The
gap width for a chart that uses numbers or text as x-axis
labels can be set to zero and the display columns will

I can do basic stuff with excel but would like to get
a great book.
Any recommendations?

Is it possible to create chart whose source-data changes
as a change the value of cell.
My specific problem is this: I need a quick way to update
the horizon of many graphs. For example ,say you are