A CV should contain a factual summary of personal details. Only use contact details where correspondence will reach you promptly.
A career aim
Can be useful to include when you wish to highlight your personal suitability for a targeted job/sector.
Are usually presented in reverse chronological order.
When presenting work experience use positive words that demonstrate what you gained in the workplace.
Use a CV to reveal the breadth and depth of your skills, interests, experience and achievements but do not let it exceed two pages.
Include names of referees and contact details (consult referees before nominating).