Essential oils carry the essence of the plants in such a potent form that a single drop of essential oil can equal multiple teaspoons of the dried herb (for instance, 1 drop of peppermint oil equals more than 25 cups of peppermint tea and oils can be up to 70x more potent than their dried herbal form).
A bachelor's degree in graphic design or a related field, such as art, qualifies you for an entry-level job as a graphic designer. However, applicants can sometimes qualify with a different bachelor's degree plus additional classes in graphic design, according to the Bureau of Labor Statistics.
Some of the courses students might take in an illustration program include history of illustration, moving pictures and letterforms. Anyone considering a career in medical illustration may need a graduate degree to go along with premedical undergraduate courses. Medical illustration master's programs typically take two years to complete and consist of courses like surgical sketching, medical illustration techniques and human anatomy.