Function - before writing it's necessary to get clear on the goal you're trying to accomplish with this resume. A resume for the next job or career advancement will be different from that for an internship or university admission. Keeping the main goal in mind and adjusting the language and the content will help land an interview.
Form - resume is a professional business document and it has to follow a certain structure. It needs to tell about work experience, training and education, and skills. Also, the entire document should not exceed two pages and you can try write to resume writing services to be considered for the position. Design should look attractive but still remain professional.
Effectiveness - it's necessary to write a modern resume for a specific position rather than to send the same resume everywhere. Also effective resumes should be free from mistakes and typos. Be sure to use professional language and avoid conversational language, slang or expressions that may come across as unprofessional in your industry or area.