Employers want to know which institutions you attended for your undergraduate and graduate career. Include any awards you received upon graduation, as well as distinctions you graduated with (summa cum laude, for example). You do not need to list your grade point average (GPA). However, if you have an excellent GPA and feel that listing it will enhance your resume, then do so. Do not include high school information, unless you graduated within three years.
Highlight any experience pertinent to the job you are applying for. For example, when creating a resume for a teaching position, you should list teaching experience separately from other work experience. Start with your most recent job, and highlight the tasks you performed for that position. Again, include the information that is most important to the position you are seeking. Include any achievements you made while working at the job.
Include any positions or volunteer work where you maintained a leadership position. In any sort of industry, the employer wants to know that you are a self starter and are not afraid to lead a project. If you do not have internship or volunteer work to include, consider adding clubs and programs to which you belonged in college. Explain your position in these organizations and how you helped accomplish tasks.
Some of your achievements will not fit into one of the standard categories of the resume. For example, perhaps you attended a conference in your field. Create a separate section entitled "Conferences" and list the information about that conference. Published writers should have a separate section called "Publications." Don't list every single article you have had published, but note how many are published and provide samples.