Appfinders provides a free comprehensive tutorial on using Google Bard (now called Gemini). This tutorial is a great place for beginners and new users to learn how to use Gemini and discover the best practices to deploy when using AI tools.  

Link: https://youtu.be/DVm9ywGzYv0 

Source credibility: Appfinders use the video to nurture and build a buying audience for their products. The advertising isn’t intrusive or distracting. It is a tutorial focused on learning and teaching best practices.