You may be writing a CV either to get a study place, or a job. Whichever it is, certain things will be the same, but there will be important differences. For this reason, it is better to avoid the 'one-size-fits-all' approach to CV writing. Either keep two versions available, for example one for study and one for jobs, or better still, revise and reorganize your CV for each job or study place you apply for.
When you send in your CV, be it for a job or a study place, it will be just one of hundreds. The person reading these CVs will not give more than one or two minutes to each one, and will expect you to present the information in a way that is easy for them to access - they will want to see the stuff that matters most to them first, not have to wade through information that is important to you but not to them. Throughout the process of writing your CV/résumé keep this person in mind and try to imagine what you would want to see if you were in their position.