->''The realm of fairy-story is wide and deep and high and filled with many things: all manner of beasts and birds are found there; shoreless seas and stars uncounted; beauty that is an enchantment, and an ever-present peril; both joy and sorrow as sharp as swords. In that realm a man may, perhaps, count himself fortunate to have wandered, but its very richness and strangeness tie the tongue of a traveller who would report them. And while he is there it is dangerous for him to ask too many questions, lest the gates should be shut and the keys be lost.''

'''''On Fairy-Stories''''' is a lecture, later an essay, by Creator/JRRTolkien, which treated of literary criticism of the FairyTale and {{Fantasy}}, genres not entirely distinct in his day.

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!! Tropes discussed:
* AllJustADream: According to Tolkien, this device automatically disqualifies any story that uses it from consideration as a FairyTale. Even an otherwise good story is like "a good picture in a disfiguring frame."
* BeastFable: If there's no other magic involved, the mere presence of {{Talking Animal}}s doesn't make a story a FairyTale either.
* {{Escapism}}: And defended.
* FairyTale
* TheFairFolk: discussed at length naturally and compared to "cute" fairies.
** One example given is the J.M. Barrie play ''Mary Rose'' in which humans are meddled with by Fair Folk who are never actually seen(see the Other Wiki for a fuller description). Tolkien seems to have liked the play reasonably, but thought it uncommonly creepy-and he thought it was ''fun'' to write stories about [[EvilOverlord Evil Overlords]] in [[{{Mordor}} hellish countries]]. He noted though that what made it work is that it was written in a way that did not require special effects.
* HeinzHybrid: He mentions this, and notes that it can lead to unimpressive results if [[HybridOverkillAvoidance overdone]].
* LandOfFaerie
* SpecialEffectFailure[[invoked]]: One problem with the dramatic presentation of fantasy. Part of his definition of Elves as idealized artists ("sub-creators") involves pointing out that this ''doesn't happen'' in the art they are rumored to produce.
* WhatDoYouMeanItsNotForKids[[invoked]]: discussed with particular vigor.
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