The charts below show the qualifications of staff in an advertising company in 1990 and 2010. Summarize the information by selecting and reporting the main features and make comparisons where relevant.

The pie charts illustrate the distribution of degree holders (in percent) among an advertising company’s personnel from 1990 to 2010. Overall, master’s degree in science consistently remained the most common qualification in the business. Its share also plateaued throughout the period, while figures of the other degrees recorded changes during the same time, with master’s […]