The Human-Dimensions of Human-Computer Interaction commences a non-technical discussion about everyday computer usage and deals with the human-dimension or social context of effective HCI. It brings forward many of the hidden complexities of the human-dimensions of HCI, and owes to the educative nature of the techno-saga. The first three chapters are designed to set the background for the duality of the human/machine dimensions of HCI. Chapter four leaves the machine-side of the techno-saga to re-enter the usability context. Consequently, in this chapter people's techno-interactions are combined with the machine-side of the HCI equation to evaluate effective solutions that try to achieve techno-satisfying outcomes. While it still maintains the human side, chapter five covers cognitive performance. Chapter six becomes quite demonstrative, drawing away from the more usual linguistics to speak to the reader through a series of metaphorical human-dimensioned HCI models. Chapter seven brings the reader back to earth to concentrate again on the human-side of the HCI equation; this time to speak about expectations that people have in seeking techno-solutions to everyday issues. Chapter eight returns the focus to the machine-side; emphasizing that a balanced approach is necessary for achieving effective HCI, as this book would not be complete without a section for dealing with gender and how it relates, if at all, to HCI.