One major factor that makes a resume effective—is having a clear and concise format. Make each segment of your resume short, but dense with information.
Most readers expect a style of writing that conveys a full thought within a short block of text. Whether they're reading a book, web page, or resume—readers will most likely key out once they've a reach a fifth line of text and still don't have a self-contained message to take from. To get around this problem, make each section and paragraph of your resume short, but substantive. Break down complex parts into smaller, bit-sized pieces no more than five lines long.