Are gold in this lesson would be to add a filter to our data and be able to look at the dashboard and shoes, which audiobooks we would like to analyze and simply select them from the filter.

Sounds useful, right?

The data we see here is quite meaningful and shows us some important trends.

However, actionable decisions will probably have to be made at the audiobook level and will need to be specific for each of the audio books our firm sells addressing the story we see here.

All right, let's add a filter to chart number two The pie chart.

I'll simply click on the tiny arrow in its right corner containing more options and will apply audiobook name as a filter.

Again.

We'll have to adjust the charts size and position in the dashboard a bit to remove the arrows Very well.

I think this will do now when I use the filter.

All changes that occur are for the pie chart on Lee.

The other two charts remain intact as the filter we just added has no power over them at the moment, and we want to be able to use this filter in order to modify the entire dashboard and not only one of its charts.

How do we do that?

Let's select the tiny arrow in the upper right corner of the filter and go to apply to work sheets where we will be able to click on selected worksheets in the dialog box that opens.

I can easily add Chart One and Sharp three and then press OK.

I hope the filter makes changes to all three charts now and yes, it does nice.

However, one thing is a bit suspicious.

When I unfiltered the first few audio books.

The ratio of reviews to sales continues to decrease, and this makes no sense.

It appears that right now the ratios are all calculated with respect to the total number of audio books.

Mmm, that's strange.

Let's check.

I suspect something is not as it should be.

When I go and take a look at the other two charts, I see that the blending connection has not been activated for the audiobook name field.

Let's activate the connection for both and see if this changes things now.

When I unfiltered the first few audio books, the percentage dozen decrease but it even goes up.

I believe it's fine.

Now.

Please bear in mind the following.

If I would like to use some of the charts elements as a filter, all I have to do is select use as filter in the upper right corner of a chart, and then all three charts will be updated.

This is another way to play around with filters.

Whether we filter data from the actual filter or simply click on a given short element hit doesn't make much of a difference.

In both cases of filter will be applied.

We've constructed a dashboard that can easily be filtered and unfiltered from here.

Now we can explore the relationship between different audio books, the number of reviews they received, their average score and the ratio between reviews and audio book sales.

The hat's awesome play around with the data and do not hesitate to share with us the insights you managed to uncover Great job getting to the end of this exercise.

It was a really pleasure teaching you tableau, and we hope to see you soon in some of our other modules.