After you position yourself in competitions, in order to make product offers irresistible, your product line may cover both all-you-can-eat buffet style and specific items. People don't just blindly buy the first time they see the product, it usually take several times, you need to allow potential buyers to know the product, and you, the seller.
According to Influence – The Psychology of Persuasion, it’s easier to ask someone a small favor first before asking for a bigger favor. Therefore, design a Slide that you don't necessary make money, up-sell with Essense, then finally shoot for selling your main products - the Profit Booster.
When offering the flagship buffet or speciality style of products/services, you want to build in the offers with some exclusiveness. Exclusiveness can be achieved in two ways: in scarcity or with urgency. Often time, scarcity implies urgency so you often only need to design a product with scarcity.
Products can be sold before the payment is collected. This is where pre-sale comes in to build up future sales. A typical pre-sale has five stages. See the mind map above for a quick reference.