It would be unfair to start reading this book without knowing that it is the fruit of not only my own perseverance, curiosity, and determination, but also the result of the suggestions, help, and support of a multitude of people I met during my academic journey.
My first thanks go to Prof. Fajardo del Castillo, University of Granada, and Prof. Forlati, University of Ferrara, who set me on the path of research believing in my abilities and stimulating my intellect. Among the prestigious scholars I met during my pre-doctoral studies, Prof. Martín Rodríguez has certainly been one of the most patient and helpful in listening to both my doubts and thoughts. Also, my thanks go to Prof. Del Valle Gálvez, Prof. García Andrade, Prof. Ruotolo, Prof. Segura Serrano, and Prof. Vavoula for their recommendations to my Ph.D. dissertation, which was granted the 2022 best thesis in public law award from the Royal Academy of Jurisprudence and Legislation of Granada. Thank you as well to Prof. de Miguel Beriain and Prof. Nicolás Jiménez for incorporating me in the Research Group on Social and Legal Sciences Applied to the New Technosciences during my ongoing post-doctoral stage.
Last but no least, thanks to the Digital Schengen Unit of the European Commission for having welcomed me, especially to the supervisor who monitored my period in Brussels, Mr Pérez Martínez, to deepen my studies on interoperability. All this being said, the opinions expressed hereinunder, including possible errors, should be attributed to my own person only.