The objective of the resume should be your skills and experiences, not your past and what you did in the past. That is why you have to be very careful and not list the thing you did solely. Try to include your skills and professions in the best way with care.
In the event that you will not pay attention to this or these information are not written on the resume you will prepare, it has a high possibility to be rejected by the person who will read it in order to call you for a job interview.
Use the paper in the best manner and never put unnecessary blanks between the lines since you already have one page to prepare your resume. Besides the objective of your resume you have to be careful in terms of the spelling and grammar.
These types of mistakes will be never forgiven and your resume may be put aside while the reader is in the middle of it. To avoid such poor mistakes you can let someone to check your resume before you send it. Pay attention to these rules and procedures, but also never neglect the objective of your resume and never forget why you are preparing it.