Your résumé should detail what you've accomplished in past jobs. A good one shows potential employers how you will likely perform in a future job. It is wise to include an objective, which should be a brief sentence about what type of post you want to pursue. For example, write, “To secure a senior-level job in corporate communications.”
A chronological résumé is usually best, as it is easier to read and follow. If you're changing fields, however, a functional résumé (organized ...