You can also create a section highlighting personal strengths, attitudes and values that are important to employers. So can examples of volunteer work. Such examples suggest to employers that you have the ingredients of becoming a high achiever, even if your past experience is narrow. In any correspondence or interviews, it helps to know as much as possible about the company and the industry beforehand, and to express a lot of enthusiasm for the job. In general terms, the more ways that you can show you are a good fit for the position, the better your chances.
Enthusiasm is always a major consideration in a hiring decision.
No doubt there are some areas where you excel, however narrow, and using either questions or observations about the skills required, you can direct the discussion to those few areas where your credentials are excellent. Remember, you can give examples of instances where you met challenges and achieved results, even if the results are not large in scale or were achieved outside the work environment. If they show that you knew how to size up a situation and take appropriate steps, whether it is in organizing something, teaching others, or taking quick action to avert a dangerous situation, an employer will have little difficulty envisioning how you might apply the same talents to their challenges and opportunities. When asking questions, ask those which show you are primarily interested in the different ways in which you might make contributions, rather than those which indicate you are primarily concerned about what the company can do for you. If there is a course you can take, or information you can study, that would help prepare you or make you more knowledgeable about the type of position you are targeting, get started on that as soon as possible.