Abstract
The book proposes an alternative model of technological development, that of engaging technologies. This model studies the way in which technological development can be perfect towards technological solutions compatible with sustainable development, with the ideals of solidarity or with cooperative and or only competitive participation. In short, the book is an analytical, descriptive and normative journey around the concept of "endearing technologies" coined by Miguel Ángel Quintanilla, which highlights the democratic values for the control of technology as opposed to the purely intrinsic values of technical efficiency and performance, as opposed to the automatic and uncontrolled tendency of technology.