Writing a recommendation letter as an employer for a student applying to programs in a different field I have been asked to write a letter of recommendation for a student I formerly supervised at my place of employment (at university, but as a staff member). The graduate programs the student is applying to ask for a letter from an employer and I feel that I can write him a strong letter. However, the student is applying for MPH, a field I know little about. Is it important to directly connect my experience with the student to his intended field, or is it adequate to just state that I think the student can succeed in the field?
In the letter, while you describe his duties, you could explain (and provide specific examples if possible) about skills that the former employee has developed and demonstrated that are transferable across all fields, including:


analytical skills
writing skills
interpersonal/collaborative skills
work ethic
initiative


Also consider if the person has written any published work, have they the potential for innovative research that could be a source of grant funding.