Encyclopedic Dictionary of Young... Series - these are excellent and informative publications devoted to certain branches of human activity (sports, cinema, technology) and sciences (chemistry, philology, history, etc.). These books will be a good help in the study of any subject and discipline, as well as help to easily and unobtrusively broaden the horizons of a child or teenager. However, for adults, these books will also be interesting, because sooner or later we all get tired of "serious" and thick volumes with a bunch of high-tech information, so why not look at the world, albeit somewhat simpler, but much more interesting.