Link building is the process of acquiring hyperlinks from other websites to your own. It is an essential aspect of search engine optimization (SEO) that helps improve a website's visibility and authority. By getting reputable websites to link back to your site, search engines view your content as more relevant and reliable, resulting in higher organic search rankings. Link building can involve various strategies, such as creating high-quality content that others naturally want to link to, reaching out to other websites for partnerships or guest blogging opportunities, and participating in online communities or directories. The quality and relevance of the links matter more than the quantity, as search engines prioritize authoritative and relevant links in their algorithms.