Web-building spiders are a diverse group of arachnids known for their ability to create intricate webs. These webs serve various purposes, including trapping prey, providing shelter, and facilitating reproduction. Common types of web-building spiders include orb-weavers, funnel weavers, and sheet weavers, each constructing unique web designs suited to their hunting strategies. These spiders produce silk from specialized glands, allowing them to spin webs with remarkable strength and elasticity. The silk's composition varies, enabling different functions such as sticky threads for capturing insects or non-sticky lines for structural support. Web-building spiders play a crucial role in controlling insect populations in their ecosystems.