The concept of Product-led Growth (PLG) focuses on reducing customer acquisition costs and simplifying product evaluation by automating demand generation and minimizing friction for prospects, as exemplified by Auth0's approach. Auth0, a provider of SDKs and APIs for user authentication, effectively implemented PLG by investing in content marketing and SEO, which placed them at the top of search results and attracted leads without traditional sales outreach. Their free plan allowed prospects to self-qualify through hands-on product evaluation, leading to efficient conversion and reduced customer acquisition costs. An example of this approach's success is illustrated by an engineering leader from a large consulting firm who, faced with an urgent need for an authentication solution, discovered Auth0 through a Google search, evaluated their product with minimal barriers, and eventually became a significant customer and advocate. Auth0's strategy demonstrates the power of content marketing and self-service evaluation in driving growth, with metrics such as search rankings and lead generation being key indicators of success.