Certification should also be mentioned in this area. Your resume should reflect your experience as it relates to your current career objective . You need to be very specific in identifying skills and responsibilities of your various experiences including relevant field work, employment and volunteer work. Always list most recent information first. This section of your resume is of key importance.
Presentation is key.
Neutral color of bond paper . Don't overcrowd information on page. No typing errors have someone proofread before printing final copy. Professional is the key word. If your work is sloppy then the employer may suspect that you do sloppy work and not offer you an interview.