This book contains a number of articles concerning the artificial perception of reality, as can be perceived by a sensor, and its interaction with natural human perception through the senses. For the first time, a link between the sensor's field and the more general perception theory is attempted. Besides, the book offers a unique insight provided by the research on sensors and microsystems currently being carried out in Italy. It covers the typical area of sensors and microsystems: chemical and biological sensors, physical sensors and micromechanics.