Although Garner's early work is often labelled as "children's literature", Garner himself rejects such a description, informing one interviewer that "I certainly have never written for children" but that instead he has always written purely for himself. Neil Philip, in his critical study of Garner's work (1981), commented that up till that point, "Everything Alan Garner has published has been published for children", although he went on to relate that "It may be that Garner's is a case" where the division between children's and adult's literature is "meaningless" and that his fiction is instead "enjoyed by a type of person, no matter what their age."  Philip offered the opinion that the "essence of his work" was "the struggle to render the complex in simple, bare terms; to couch the abstract in the concrete and communicate it directly to the reader". He added that Garner's work is "intensely autobiographical, in both obvious and subtle ways". Highlighting Garner's use of mythological and folkloric sources, Philip stated that his work explores "the disjointed and troubled psychological and emotional landscape of the twentieth century through the symbolism of myth and folklore." He also expressed the opinion that "Time is Garner's most consistent theme".  The English author and academic Charles Butler noted that Garner was attentive to the "geological, archaeological and cultural history of his settings, and careful to integrate his fiction with the physical reality beyond the page." As a part of this, Garner had included maps of Alderley Edge in both The Weirdstone of Brisingamen and The Moon of Gomrath. Garner has spent much time investigating the areas that he deals with in his books; writing in the Times Literary Supplement in 1968, Garner commented that in preparation for writing his book Elidor:  I had to read extensively textbooks on physics, Celtic symbolism, unicorns, medieval watermarks, megalithic archaeology; study the writings of Jung; brush up my Plato; visit Avebury, Silbury and Coventry Cathedral; spend a lot of time with demolition gangs on slum clearance sites; and listen to the whole of Britten's War Requiem nearly every day.

Answer this question "Are there any other interesting aspects about this article?" by extracting the answer from the text above.
Garner's work is "intensely autobiographical, in both obvious and subtle ways".