First you will need to search for Illustrator Brushes (my example is a water color brush) and download the file making note of the name.
How do you add brushes to Illustrator?
Graphics are all around you — print media, Internet, TV, packaging, and the document you’re reading now! As our world becomes increasingly visual, graphics are impacting how information is delivered. This course provides experiences for students to use image, type, color, illustration, and photography to create dynamic media using Adobe Creative Suite. Students will focus on the design process needed to create print and digital media that effectively communication messages and information.