"On the cover there is a subtle mixture of warm and cold colors. On the face of the humanoid figure there are warm tones and cold tones on one side that spread throughout his body and his aura. The coldness of the machines and the digital mix with the warmth of life and the human. And the simultaneity of these characteristics that belong to us, defines us. We are human in a paradoxical route: we live emotional relationships with immaterial information coming from digital media. This reality permeates our entire material body. Hot and cold. We are also hyperconnected with countless people and information but, at the same time, we are alone. We are individuals with no defined identity in an information network with various social networks whose appearance changes according to the presence we want to mark in these territories. The connections of this digital universe, these nodes that make up the links on the Internet, are like the synapses of our neurons that control our bodies. We are not androids, we are not human-machines, we are not cyborgs, we are only humans. Technology is not yet materialized in us, it is inscribed in our contemporary way of being. This constellation of digital information is tacitly imprinted on our bodies. We are digitally influenced and digital influencers. We have multiple identities. We are physically impermanent, but the information we share online has the possibility of being accessible for centuries or even millennia. Our assets in this digital logic have no mass; we cannot touch the subscriptions and files that we accumulate. Nothing is permanent and changes are inevitable. Even the speed at which transformations take place is not constant. That is why Digital Delta is an urgent and indispensable book to understand the changes that we are going through in this reality that is physically and digitally constructed."