A CV produces an impression of the person who wrote it. That's why it's better stall some time and choose proper words and structure for a perfect CV.
Cases to Use a CV
If you're applying for research, education or scientific positions along with grants or fellowships in the USA, most probably you'll be required to send a CV instead of a resume. As for Cyclopean or Asian countries, employers demand a CV, not a resume in the majority of cases.
Formatting is Important
Every individual position may require an individual CV format. There are grant CV samples, international CV samples, research job CV samples and a lot more on jobofmine.com
Multiply Your CV
As you may be applying for several non-relevant positions, make different versions of a CV focused particularly on this or that job advert.
What Should be Mentioned
Comparing to a resume, a CV contains a more detailed professional history. Include whatever information you may include into a CV: write about grants you've been awarded, all your awards and licenses, participation in any courses or membership in professional associations.
What is Not Worth Mentioning
You'd better not include a photo, any salary information, as well as reasons why you're looking for a new job. References are not included on a CV either, it's reasonable to make a separate list of referees and give their letters to the employer if requested.
Check It Twice
Proofread your CV carefully several times yourself. Then ask someone to give it a fresh look. Very often we may read one and the same text again and again but not notice grammatical or stylistic mistakes. Someone's assistance will open your eyes to what you've written. Ask for someone's opinion if your CV looks professional enough or needs to be improved.
You don't need to write a long and detailed story of your career development. Give a summary of what, where and for how long you've been doing.
Honesty is the Best Policy
Try not to give in to the temptation to exaggerate your professionalism. Otherwise, you might be stuck in an awkward situation at an interview if an interviewee decides to check your background. It's always the best to write what you are, without any deceit.