Hey Lucas, Tailwind CSS is a utility based CSS framework which you can use to build your designs without leaving your HTML markup. Tailwind UI is a project based on that framework. Tailkit is also a project which uses Tailwind CSS. If a developer is planning on using Tailwind CSS framework to build his website/web app project, then he can use the ready designed UI components offered in Tailkit along with the various included helper tools to build the UI of his custom project very fast with ease. Hope that makes sense!