Cleaning a guitar is essential for maintaining its appearance and sound quality. Regular cleaning helps remove dirt, sweat, and oils that can accumulate on the body, neck, and strings. Use a soft, lint-free cloth to wipe down the surface, and consider using a specialized guitar cleaner for deeper cleaning. For the strings, you can use a string cleaner or simply wipe them down with a cloth after each use. Additionally, it's important to clean the fretboard, especially if it's made of rosewood or ebony, as these materials can absorb grime. Regular maintenance will prolong the life of your instrument.