The conception of the reading as a “communication echo” (feedback) allows being derived a formula of Energy conversion efficiency (ECE) of the book. The conclusion is that a book of high efficiency is the one that systematically provokes feedback and the one that is in the continuous...

Object of the study: The broad object of this study is the academic field of the book and the book as an area of interdisciplinary teaching. Purpose: to prove that the 21st-century cross-media and hybrid media ecosystem emancipates Book Science from the rest of the sciences in whose objects it...