Fonts are an important part of your word processing software. They define the look and feel of your documents and can be extremely useful when designing websites or creating print materials such as brochures, magazines, etc.
A font is a typeface that has been designed specifically for a particular purpose. The most common fonts are sans serif fonts such as Times New Roman, Arial, and Helvetica. Serif fonts include serifed typefaces such as Times New Roman. There are also a variety of other typesetting styles, including italics, bold/underline/strikethrough combinations, and effects like underline or bullet points.