My parents had this set at home, and for general reference purposes when it was published in 1983, it would have satisfied most students' basic needs; however, with Wikipedia and all the other sources of information readily available online today for free, it's hard to imagine spending a lot for an outdated encyclopedia. Except perhaps in a few very rare cases though, the information contained within Lexicon Universal Encyclopedia would still be true, albeit outdated, so if up-to-date and comprehensive wasn't a priority, it might still be worth having this set of encyclopedia for a young learner's basic research purposes.