A stylus is a small tool used for writing or drawing on touchscreens, like those found on tablets and smartphones. It often resembles a pen and allows for more precise control than using fingers. Many artists and designers prefer a stylus because it can create detailed artwork and make it easier to navigate apps like Adobe Illustrator or Procreate. Styluses come in various types, including passive and active. Passive styluses are simple and do not require batteries, while active styluses, like the Apple Pencil, have advanced features such as pressure sensitivity and palm rejection. This makes them ideal for tasks that require accuracy and finesse.