More complex case studies might need several layers or graphics; less complex, few.
Graphics increase in necessity as the complexity of case studies increases.
The more complex the case study, the less it needs graphical representation.
A woman reading the newspaper.
He is a traveling rock show photographer.
A woman is playing cards.
He would have chosen to stay, even if he had another place to go.
That series discusses several challenges that won't be easily overcome.
They bore no relation to inhabitants of the Indonesian archipelago.