The resume should only contain very selected information. If it is information that is not critical nor relevant to the job you are seeking, then it should be omitted. The resume should be entirely truthful. There should not be any misrepresentations on the resume relative to work experience or education. However, it is not necessary to include all of one's background on the resume.
Most individuals write a short paragraph summarizing their entire work experience and education.
In addition, we advise individuals to list areas of skill and knowledge in an outline format that would be key to a potential employer. Next would be a listing of significant accomplishments that you have had, presented in an outline format with action verbs. Typically, we want the accomplishments to be described in terms of activity and the result. They do not have to be written in complete sentences and they should be written in an outline format with dollars or percentages listed as often as possible. Most of the time, we recommend approximately three to six accomplishments per position.