Criticism of past employers
A sure way to put off a potential employer is to waste space on your resume criticizing your past employers or supervisors. You may feel perfectly justified in your criticism, but the purpose of a resume is to showcase your talents and abilities, not air your grievances. Prospective employers are likely to get the impression that you are disloyal or generally disgruntled — and that not what they’re looking for. Instead of focusing on things that went wrong, write about your positive relationships and your accomplishments. Tell people about the good things you can bring to their business if they give you the opportunity.