To thrive as a Developmental Editor, you need advanced skills in manuscript evaluation, story structure, and content organization, usually supported by a background in English, journalism, or a related field. Familiarity with editorial software such as Microsoft Word with Track Changes, Adobe Acrobat, and project management tools is important, and professional certifications from organizations like the Editorial Freelancers Association are a plus. Excellent communication, collaboration, and diplomacy are essential soft skills when guiding authors through major revisions. These abilities ensure effective manuscript improvement and foster positive relationships with writers and publishing teams.