The document discusses the importance of considering the human side of design. It emphasizes eliminating confusion in a user's thought process by making products effective, learnable, efficient, memorable, prevent errors and satisfying. Designs should be usable, useful, desirable, accessible, credible and findable. Factoring the human perspective early in the design process through testing, understanding users and iterating improves usability and prevents people from abandoning the design. The overall message is to design for real people by adapting the design to people rather than forcing people to adapt to the design.