History Literature / SweetValleyHigh

* AdultsAreUseless - This applies to Ned and Alice, as well as many of the parents in the series (to the point of neglect or even abuse in some cases). The twins' parents can't even tell when complete strangers are impersonating their daughters. ''Todd'' notices a difference in the fake Elizabeth before her own parents!

* SuddenlySexuality: Steven comes out as gay in ''Sweet Valley Confidential'', despite having supposedly been heterosexual for the whole of the original series, being married to Cara at the start of the book, getting engaged to Billie in ''Sweet Valley University'', and having a nervous breakdown over the death of ''another'' girlfriend (Tricia Martin - see IdenticalStranger above). His eventual boyfriend [[spoiler: husband in The Sweet Life]] is Aaron Dallas, another case of SuddenlySexuality.

** This might be an example of AdaptationDecay. In the books, while fun-loving and boy-crazy, it was mentioned in at least one book that Jessica got decent grades in her classes.

** ''Sweet Valley Confidential'' does the same by altering the events of ''Sweet Valley Unversity'' to introduce a long-standing affair between Todd and Jessica that began while they were in college.

* WhatHappenedToTheMouse: in SVU, Steven had a live-in girlfriend named Billie. They were engaged and expecting a child [[spoiler: she had a miscarriage]]. Then she just disappeared with no explanation. Even Jessica's ex-husband Mike got PutOnABus and in a later book, TheBusCameBack! Same with Nina Harper. She lived with the twins and two male friends, but got fed up Sam's messiness and moved out with no further mention. Although she was Elizabeth's best friend, there was no explanation given for her disappearance.

* DownerEnding: A Night To Remember (the prequel to the Evil Twin Novel): [[spoiler: the big prom that Elizabeth, to the point of going all Captain Ahabian, planned goes horribly horribly wrong when a rival school crashes the prom and a full-scale riot breaks out with Todd leading the charge. Furthermore, the violence of the riot causes Lila (mentally unstable from being nearly raped) has a nervous breakdown and attacks a guidance counselor, who she thinks is trying to rape her and basically has to be placed in a mental institution that very night. And Jessica, who spikes Elizabeth's drink with liquor in hopes of getting her sister to stop acting like a control freak, drives home with Jessica's boyfriend (the only one who was actually good to her) and kills him dead.]]

** Played straight in ''The Sweet Life'' as Jessica and Todd are having marriage problems but they don't see a therapist.

* [[FakeTwinGambit Fake Triplet Gambit]]: In one of the ''Twins'' books, Elizabeth and Jessica invent a third sister, Jennifer, and take turns pretending to be her.

* DownerEnding: A Night To Remember (the prequel to the Evil Twin Novel): [[spoiler: the big prom that Elizabeth, to the point of going all Captain Ahabian, planned goes horribly horribly wrong when a rival school crashes the prom and a full-scale riot breaks out with Todd leading the charge. Furthermore, the violence of the riot causes Lila (mentally unstable from being brutally raped) has a nervous breakdown and attacks a guidance counselor, who she thinks is trying to rape her and basically has to be placed in a mental institution that very night. And Jessica, who spikes Elizabeth's drink with liquor in hopes of getting her sister to stop acting like a control freak, drives home with Jessica's boyfriend (the only one who was actually good to her) and kills him dead.]]
** The Sweet Life [[spoiler: Elizabeth successfully clears Bruce's name after he is framed for sexually assaulting a woman, only for him to dump Elizabeth (who risked everything to clear his name, to the point of becoming estranged from everyone around her) for a woman who he met while in hiding. At the freaking press conference being held in his honor after Elizabeth cleared his name! Also, Jessica and Todd reaffirm their relationship (much to the horror of those who were hoping they would break up) and Lila, who has been faking a pregnancy to keep her boyfriend from leaving her, is exposed BUT is forgiven, as it turns out that the sex Lila had with her boyfriend right before she started the pregnancy scam, DID lead to her becoming pregnant. So she escapes punishment by way of her husband forgiving the big lie after it came true, by pure luck!]]

http://static.tvtropes.org/pmwiki/pub/images/Wakefield_Twins.jpg Book series running from 1983 to 2003, created by Francine Pascal. Spawned a TV series made by Creator/SabanEntertainment, several SpinOff book series, a board game and other merchandise. Almost 200 books were published in the main series alone; over 600 were published including the spinoff series. Stories were handed off to ghost writers and generally hit bookstores once a month.

* HeyItsThatGuy: [[JasonDavidFrank AJ commands the]] [[MightyMorphinPowerRangers power of the Tigerzord.]]

* TheMovie: currently in the works and is rumored to be a musical.

* HeyItsThatGuy: KAApplegate and MichaelGrant, both of which co-wrote the {{Animorphs}} series and the latter of which wrote {{Gone}} and {{BZRK}}, ghostwrote for ''Sweet Valley Twins'' before they got their start.