Typography is the art and technique of arranging type to make written language legible, readable, and visually appealing. It involves selecting fonts, sizes, line lengths, and spacing to create a harmonious layout. Good typography enhances communication by guiding the reader's eye and emphasizing important information. Different styles of typography can evoke various emotions and responses. For example, serif fonts like Times New Roman are often seen as traditional and formal, while sans-serif fonts like Arial appear more modern and clean. Understanding typography is essential for graphic design, advertising, and any form of visual communication.