Writing a resume is extremely important process as we all sometimes start thinking about new job and once we do it – CV is the first thing that pops up in our mind. Here are few advices and tips on how to prepare your CV in optimal way:

 (below text is taken from www.how-to-write-a-resume.org)

1. Begin by determining your objective (do this prior to writing the resume).  You should clearly state what sort of a job you want, and know what kinds of skills and experiences are needed to do well in that job. Even if you decide to change your job objective later, it is very important that you decide on a temporary objective for now. After your objective is determined, you can structure the content of your resume around that objective.  As noted above, you have a very small window of time to get the interest of a hiring manager, therefore being general and scattered will insure that your resume is filed in the "circular file" - i.e. - the trash can. Therefore, it is essential that you take the time before you start your resume to form a clear and targeted objective.
2. Now lets begin the resume writing process.  Keep in mind, the single and most important goal of a resume is to obtain an interview. It's a marketing tool to get you in the company and in front of your potential boss – that’s it. Once in, you will need to do the sales pitch, and close the deal. With that said, you do not want to go into detail about every accomplishment in your resume. Strive to be clear and concise, as the sole purpose is to have a potential employer contact you for an interview.  Bottom line – you should put yourself in the shoes of the resume reader - when looking at the job qualifications needed for the position; what would you be looking for in a candidate - Obviously, that is what you should include in your resume.
3. In the body of your resume, use bullet points with short sentences rather than lengthy paragraphs. As noted above, resumes are read quickly (usually 10-30 seconds). Therefore, having key phrases standing alone and bulleted will help the reader see the important information at a glance - while at the same time absorbing the most important information.  Again, don't worry about the specifics; you will go into the details during the interview.
4. Use action words   - words like prepared, managed, developed, monitored, and presented will cause your resume to stand out. In addition to standing out to a reader - you are also insuring that if your resume is scanned, the computer will pick up on the words. You read correctly, some companies now scan in your resume, and have computers pick the resumes to be looked at. The computers are looking for one thing – they’re looking for keywords that have been picked by the hiring manager. These are action key words that relate to the position; therefore not including them could mean your resume is disregarded as a "non-match". I’ve devoted a section to resume format, and will deal with how to format your resume for computer scanners.  We've compiled a list of action words to include here.
5. Highlight your strengths, and what is most relevant to the potential employer. Due to the fact that most resumes are typically reviewed in 10-30 seconds, put forth the effort and determine which bullets most strongly support your job search objective. Put the strong and most relevant points first where they are more apt to be read. Doing this will hook the reader, and the rest of your resume will reel them in.
6. atch the needs of the hiring company - Review job postings online and in the newspapers for positions that interest you. Each listing will almost always have a brief blurb about the company and the position available. Read the job description closely, and use the key words listed in these ads, and match them to the bullet points in your resume. Chances are that you have some of these as key points already, however if you have missed any, be sure to add them to your resume. It sounds obvious, but its worth mentioning that using a custom resume instead of a generic one will greatly increase your chances of an interview, as you will be a better match in the eyes of the reader – how can you not be? – you’ve tailored your resume to the position.
7. Above all in your resume and interview - you must be positive.  Therefore, avoid including negative and irrelevant points. If you feel your graduation date will subject you to age discrimination, leave it off your resume. If you do some duties in your current job that don't support your job search objective, do not include them. Focus on the duties that do support your objective, and leave off irrelevant personal information like your race, weight, and height.
8. Have you taken an advertising class?  Let me give you one tidbit from my studies that will improve the appearance of your resume.  White space is the open area of an ad, and white space is important to your resume.  Open up the newspaper, and take note of which ads first catch your eye. Are they the ads that are jammed full of text and pictures, or are they ads that have a large amount of unused space ("white space"). This is done to grab your attention, as you are always attracted to open areas. For this reason, don't worry if you are having a hard time filling the page with text; increase your line spacing to compensate – this will increase the white space – and really, that’s a good thing.
9. How long should my resume be?  What size font should I use? -  The font size should be no smaller than 10 point, and the length of your resume should be 1-2 pages. Yes, you read correctly; you can use more than one page.  But remember, keep it concise.  It's ok to use 2 pages for your resume, however it’s not necessary.
10. Ask a friend, and get an outside opinion on your resume before sending it off.  You should always have a 3rd party or  resume critique service review your resume. You are so close to your situation, it can be difficult for you to note all your high points and clearly convey all your accomplishments. Having someone besides you review your resume will allow you to note how others will view your marketing materials - would your resume impress them? If not, why? Don't settle for - "it's good".  You must encourage the 3rd party to give you feedback and ask questions. These questions from the reader can help you to discover items you inadvertently left off your resume. Take their comments into consideration, and revise your resume to include these items. In addition to adding in missed items, their questions can also point to items on your resume that are confusing to the reader. This valuable input will allow you to clarify your resume based on this input.