Pro bono work, or volunteer work, is essentially free work. Offering Pro Bono Services Pro bono work can be a useful way for beginners and students to gain experience and add samples to their portfolio, since professionals are more likely to hire someone with less experience if there isn't a paycheck on the line. Those hoping to build their portfolio and professional reputation should be sure to treat their pro bono clients with the same diligence they would bring to any paid position; pro bono work is an excellent opportunity to earn professional experience. Utilizing Pro Bono Services