Before we dive into building a report, let's review the workflow at a high level.
Your first step is to choose the report element.
It can be a visualization such as a table or a chart,
or it can be a static element like a textbox or an image.
When you make your selection,
Power BI adds the element to the current page of the report and then you
can move it around to the location where you want it.
You can also resize it if necessary.
It's easy to change the location and size later if you change your mind.
If you've added a visualization to the page,
you need to select the data to display in that visualization.
Remember that you can see the fields and measures in the data model
grouped by table and you just need to select the checkbox for the
field or measure that you want to include.
At this point,
you might decide that the original visualization that you
selected is not the one that you want after all,
so you can easily select a different visualization and
all your current field and measure selections stay
connected to the new visualization.
Now, it is possible that some of these selections do not make sense for the
newly selected visualization, and you'll see an error display,
but you can easily clear the checkbox for fields or measures
to remove them from the visualization.
The bottom line is that it's very simple to select the data that you want to
see and then to make adjustments to your visualization.
Once you're happy with your selections,
it's time to polish up the appearance of the report element
by configuring one or more format options.
You can change colors and fonts and font sizes, just to name a few.
The specific format options depend on the type of visualization
or static element that you're configuring.