I bought the trilogy as a Christmas present for my wife who is a fan of the Merlin TV series. The TV series is rather juvenile and relies heavily on special effects, which, to be fair, is inevitable given the time when it is screened for a family audience, so I wasn't sure how she would react. I needn't have worried. She loves it. I recall reading it many years ago and I enjoyed it too. Unlike the TV series, in which Merlin is equipped with CGI-created special effects that sometimes make him appear to be a Harry Potter-like character complete with an array of magic spells, the trilogy attributes him with more modest gifts, such as prescience, that make him more credible. Mary Stewart also captures the historical perspective of the times, insofar as we know of them. The trilogy should be viewed as a trio of fictional historical novels, although with the caveat that the adventures of both Merlin and Arthur are inventions of Geoffrey of Monmouth, always assuming that Merlin and Arthur ever existed.