The 3 project types on skillfull are projects, live events, and subscriptions(projects include both collections and courses).
Projects and collections are a collection of embedded websites, text, files, and quizzes that other people can learn from. These can be free, or unlocked permanently for a one-time price.
You can also create a live event, either a 1 on 1 or a webinar.
You can then choose how long your event will last. Once public, the time and date is determined by your availability settings, where you input all of your available times for customers to choose from.
Finally, there is a subscription. This allows you to sell collections and courses at a rate and price of your choice to your customers.