There are a few reasons why it's important to keep your resume simple. First of all, many of them are read by the applicant tracking systems I mentioned, not by people. Those systems work best reading text rather than fancy formatting.
It's also important for the hiring manager to be able to easily read your resume. Using a 10 or 12 point font will ensure that your resume is read. Basic fonts like Arial, Verdana, Calibri, and Times New Roman work well. You can make section headers a little larger or bold.
Don't overuse capitalization, bold, italics, underlines, or other emphasizing features. Again, basic works best. Do be consistent in your formatting. For example, if you bold one section heading, bold them all. If you bold the company name, be sure the others are all bold, as well.
Do you need help deciding on how to choose the best resume format? Here's information on how to select the best resume format for your work history, including choosing a chronological, functional, combination, or a targeted resume format.
More resume tips and advice for writing a perfect resume, plus resume tips for online job applications, resume formatting, resume styles, choosing a resume writer, and tips for writing resumes that secure an interview.
Before you start work on your resume, review free resume samples that fit a variety of employment situations. These resumes examples and templates provide job seekers with examples of resume formats that will work for almost every job seeker.