this is a modern . i have identified by the thin and horizontal and there is not bracketing.
it is a sans serif. i have identified because it does not have serif and bracket nor thin and thick horizontal.
The elements that are contracting are the thin horizontal and the radical thin and thick transition in the stroke from the modern with sans serif elements which there is not a thin horizontal and a radical thin
The above principles contribute well in the design of the ad by making it appealing we can see that the modern type is larger than the sans serif type which made a contract, i think the modern and sans serif was a good choice to make the design appealing because they are contrasting well.