Illustrator internship opportunities provide you with valuable training and experience with professional illustrators. Some employers refer to their illustrator intern as an artist assistant, but you may not have as many responsibilities as a paid artist assistant. In some cases, you actually work with the artist assistant and help them with various administrative and clerical duties. Your role also depends on the kind of illustration you study. If you are studying computer animation or 3D graphic design, you have more technical duties, such as rendering and coding. If you work with a more traditional graphic designer or illustrator, you draw and sketch.