The document discusses the "four pleasure framework" developed by Professor Lionel Tiger, which categorizes four types of pleasure derived from products: physio-pleasure (sensory pleasure), psycho-pleasure (intellectual pleasure), socio-pleasure (social pleasure), and ideo-pleasure (ideal-based pleasure). The framework can be used to evaluate how pleasurable a product is to use and own, identify opportunities to enhance pleasure, and take a holistic approach to product design and marketing. Examples are provided for each pleasure type.