Drawing the same things in the same way is good. You remember it easier. For example: Current-numbers are always filled. Forecast numbers are always hollow. Also works when it’s pretty small.
It is always better to use tricks to remember things. Filled means: already happened. Not filled means: almost there. Anything else is just confusing.
Source: Beiersdorf AG, annual report 2009.
The columns are also funny. Christmas candles. After a while, they thought so as well.
Source: Beiersdorf AG, annual report 2012.