* {{Blooper}}:
** The initial Canadian French release of the Fun Day Fairies mixed up two of the names on the covers, which resulted in [[https://vignette.wikia.nocookie.net/rainbowmagic/images/d/dc/TheaFrench2.jpg/revision/latest/scale-to-width-down/400?cb=20180121063110 Thea the Thursday Fairy's book carrying Freya the Friday Fairy's name]], and [[https://vignette.wikia.nocookie.net/rainbowmagic/images/0/09/TheaFrench.jpg/revision/latest/scale-to-width-down/400?cb=20180121062759 vice versa]]. They were later reprinted with the names corrected.
** The US cover for Robyn the Christmas Party Fairy mistakenly displays her without wings.
* CashCowFranchise: In the UK at least, though it seems to be winding down a bit in the US.
* CreatorsFavorite: The books are written by several authors under the pseudonym Daisy Meadows, and as such, [[Literature/RainbowMagicDanielleTheDaisyFairy Danielle the Daisy Fairy]] was elected to be Meadows' favorite fairy.
* DevelopmentHell:
** There have been talks of a TV show for ''years''. All that's come out of it is the ''Return to Rainspell Island'' movie/OVA and it's very likely it'll be the only thing made.
** Kat the Jungle Fairy was scheduled to be released in 2016, but due to market trends necessitating other books first, her release date was pushed back to 2022.
* FollowTheLeader: ''Candy Fairies'', ''Secret Princesses'', ''Rescue Princesses'', and ''Mermaid S.O.S'' among others. ''Secret Kingdom'' is also inspired by this (it even shares some writers), except there are 3 girls, they don't just help fairies, and the BigBad is female as well as being the king's sister.
* LateExportForYou: The Rainbow Fairies' series was not published in Ukraine until 2022, nineteen years after the initial UK release in 2003.
* MilestoneCelebration: To celebrate 20 years of the franchise, new characters Gracie and Khadijah were added in Hope the Welcome Fairy's book.
* NoDubForYou: ''Return to Rainspell Island'' was released in Japan a while after its initial UK one, though it was only released in English but with the option of Japanese subtitles. It was also never released in the US.
* NoExportForYou:
** A few fairies, such as Lindsay the Luck Fairy, Addison the April Fool's Day Fairy and Autumn the Falling Leaves Fairy haven't come out in the UK.
** ''Return To Rainspell Island'' has yet to come out outside the UK and Japan.
** A few series haven't made it to the US, such as the Showtime Fairies, some of the Christmas specials, and a series of one-offs.
** Some of the newer series have not been able to be published in the US, with the Candy Fairies being the last series to be released there.
* OfficialFanSubmittedContent: Mia the Bridesmaid Fairy and Juliet the Valentine Fairy were both named by fans of the series in polls.
* PlayingAgainstType: Movie exclusive; one would not expect the silly goblin Leonardo to share a voice actor with [[WesternAnimation/TheOctonauts Dr. Shellington]].
* ScheduleSlip: Ivy the Worry Fairy's book was pulled back for a few months in favor of Sasha the Slime Fairy.
* WhatCouldHaveBeen:
** Sweet Fairies: Initially, the Cupcake Fairy was named Clara, and the Chocolate Fairy was named [[MeaningfulName Coco]], but their names were swapped shortly before release.
** Kimi the Bubble Tea Fairy was originally listed online with the name Elena.

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