Cross-stitching is a form of embroidery where X-shaped stitches are made in a tiled pattern on fabric, typically using aida cloth or linen. It often involves using colored threads to create intricate designs, from simple geometric shapes to detailed images like landscapes or portraits. Cross-stitching is popular as both a hobby and a decorative art form, appreciated for its versatility and the meditative, repetitive nature of the stitching process.