A series of books by Betty [=McDonald=] about a small old lady who lives in an upside-down house. She spends her time curing children's bad habits with magical cures left by her dead husband. A light-hearted critique of modern parenting with two sets of [[AnAesop Aesops]], one for children about the fact there are consequences to their actions and one for parents about how it's important to let their children learn these things for themselves.

The stories were originally bedtime-stories she told to her daughters (Annie and Joan--see "The Fighter-Quarrelers Cure") and later her nieces/nephews and still later to her grandchildren. This accounts for some of the inconsistencies. (Some 'cures' being simple reverse psychology, others having an element of magic or fantasy.)

In 1994 the books were adapted into a short-lived TV series starring Jean Stapleton in the title role.

In 2016, a new spin-off of the series, titled ''Missy Piggle-Wiggle and the Whatever Cure'' was released, featuring Mrs. Piggle-Wiggle's spunky niece Missy Piggle-Wiggle, written by Ann M. Martin and Annie Parnell, with illustrations by Ben Hatke. Following the success of this first book in the new series, a second, titled ''Missy Piggle-Wiggle and the Won't-Want-the-Dog Cure'' is [[https://www.amazon.com/Missy-Piggle-Wiggle-Wont-Walk-Dog-Cure/dp/1250071704 slated for release]] on September 5, 2017.
!!This series has examples of:
* {{Aesoptinum}}
* AppliedPhlebotinum: Various magic cures.
* BecauseISaidSo: Deconstructed. All it teaches children is that their parents don't actually have reasons for saying what they do (since they can't produce those reasons when challenged), and so when the parent actually is trying to impart an important life lesson, their kid isn't going to listen to them.
* CelibateHero: Mrs. Piggle-Wiggle is never mentioned as being so much as interested in other men after the death of her husband. And in ''Missy Piggle-Wiggle and the Whatever Cure'', in which he's not dead, she sets off on a journey to find him after he goes missing.
* CloudCuckoolander: Mrs. Piggle-Wiggle is a bit weird with her house and animal companions. Her husband is hinted to have been a weirdo of a pirate as well.
* CoolHouse: It's literally upside-down!
* CoolOldLady: Mrs. Piggle-Wiggle.
* EarlyInstallmentWeirdness
** In the first book, the cures Mrs. Piggle-Wiggle recommended were realistic, if comically exaggerated, and generally involved reverse psychology; in later books, all the cures had a magical element to them.
** ''Missy Piggle-Wiggle'' mixes things up a bit. ''Most'' of the cures involve a magical element, but one or two are just reverse psychology sort of stuff.
* FreeRangeChildren: In addition to the time period, allowing children to discover how the world works for themselves, providing help instead of controlling them, is a major theme.
* FriendToAllChildren
** Mrs. Piggle-Wiggle loves kids and really understands them.
** Missy Piggle-Wiggle is equally good with children. Not long after she arrives to take charge of the upside-down house, the house is soon humming with children who come over regularly to hang out or play.
* HomemadeSweaterFromHell: Mrs. Piggle-Wiggle always accepts hand-made gifts from the children (sweaters, cookies, etc.) no matter how awfully made or tacky with genuine joy and gratitude.
* LocalHangout: All the kids keep coming to Mrs. Piggle-Wiggle's house.
* HaveAGayOldTime: Mrs. Piggle Wiggle's cure for the selfish Dick is to have his label all of his items like "Dick's book. Don't touch." One of his classmates mocks this by putting a sign on his back that says "This is Dick. Don't touch."
* MeaningfulName:
** ''Dick'' Thompson in "The Selfish Boy Cure", at least before his redemption.
** ''Missy Piggle-Wiggle'' has a group of children with the last name of Freeforall who are, collectively, the Freeforalls. Each of them has their own particular brand of awful behavior until Missy Piggle-Wiggle deals with them.
* MessyPig: Inverted. Mrs. Piggle-Wiggle has a pig named Lester. He doesn't speak, but he does help kids with bad table manners by setting a good example. He's clean, tidy, and smart.
* [[NiceJobBreakingItHero Nice Job Raising Them, Parent]]: Many of the cures are only necessary because the parents actively let it get to that point, through either overindulging a child or trying to be too controlling in general. If Herbert Prentiss's mother hadn't kept caving and cleaning up his room for him, Herbert would have discovered years ago that if he didn't want to step on blocks and wanted a place to sleep, he'd better clean it up. In other cases, the parents undermined their own authority by using BecauseISaidSo in place of actual reasons, so their children simply don't listen to them anymore because it seems like they don't know what they're talking about. Generally, Mrs. Piggle-Wiggle is the last resort: only a few are GenreSavvy enough to consult an expert when a problem comes up.
** In one case, where constantly interrupting children are given magical powder that makes them fall silent whenever they begin to interrupt, they point out that their parents interrupt all the time too. They all take the powder and HilarityEnsues.
** A more localized incident appears in Lester's first story. The mother of the boy who Lester is teaching serves pork chops for dinner and Lester [[GreenAroundTheGills quickly goes green]] [[IAteWhat when he realizes]] [[ImAHumanitarian just what he ate]] though good manners prevent him from allowing his discomfort to be known. Then the boy comes downstairs the next day to his mother making bacon and promptly scolds her for being so rude to Lester.
* [[NotGoodWithPeople Not Good With Adults]]: Although she will happily discuss the children's problems over the phone when the parents call, she does not invite adult guests over or socialize with them like she does with the neighborhood kids. (This would be considered creepy today.)
* ThePigPen: Patsy
* {{Pirate}}: Mr. Piggle-Wiggle was a pirate... who left behind his treasure map and a treasure chest full of magical cures.
* APirate400YearsTooLate: Mrs. Piggle-Wiggle's deceased husband was a pirate when he was alive, and the story takes place in TheFifties.
* RadishCure: The TropeNamer and the usual method by which Mrs. Piggle-Wiggle's cures work.
* ReversePsychology: Some of the cures.
* SparedByTheAdaptation: In ''Missy Piggle-Wiggle'', similar to the television show, Mr. Piggle-Wiggle isn't dead, simply missing.
* TakeThat: Many, against the BecauseISaidSo school of parenting. Most of the cures essentially consist of allowing the child to discover that their actions actually have consequences, learning how the world works and what to do in order to obtain the desired results instead of just that father knows best.
* TeamMom: Mrs. Piggle-Wiggle.
* TheFifties
** Or thereabouts for the original ''Mrs. Piggle-Wiggle'' books.
** ''Missy Piggle-Wiggle and the Whatever Cure'', however, is clearly set in the era it's written of the 2010s, as the characters are stated to use modern computers, as well as things such as flat-screen televisions. On the other hand, though, the problems faced are quite similar to those from the original books, which shows that in many ways things haven't changed. Kids still have problems like being tardy, not caring about others, or being a [[KnowNothingKnowItAll know-it-all]], while the parents are still guilty of stuff like not enforcing proper discipline or being too permissive.
* TheMusical: Written for Seattle Children's Theatre.
* ToughLove: Advocates a much less harsh version of the trope: parents who try to protect their kids from the real world too much will prevent them from learning how to handle it, but all of the parents in the books still love their kids and are involved with them to some degree. A lot of the parents start having problems with the cures during the part where the kid is discovering the consequences of their actions, but not stepping in to soften the blow so much that the lesson is lost is vital.
* TrashOfTheTitans: Hubert Prentiss
* TreasureMap
* WantingIsBetterThanHaving
** The cure for children who want to stay up all night is just to ''let them.'' The children end up discovering that it's annoying to be tired all the time during the day, and then when they fall asleep at a movie première they'd been looking forward to for ages, that's the last straw.
** Similarly, in ''Missy Piggle-Wiggle and the Whatever Cure'', the Just-One-More-Minute Cure for Samantha Tickle is to simply state that something is about to happen and that there aren't going to be any further reminders, and then stick with that. Well, that and Missy Piggle-Wiggle sending her snarky talking parrot Penelope over to be Samantha's babysitter, as she's going to be spending a lot of time alone. The cure finally works when Samantha's parents have to go to eat out due to the kitchen being a disaster because of Samantha not doing her chores. Samantha is left behind and first fixes herself pasta with vegetables, then scrubs, washes and dries the entire kitchen top-to-bottom.
-->''This is how Samantha knew she was growing up: She didn't cry. She didn't accuse her parents of torturing her or abandoning her. She simply said. "All right. I'll make my own dinner." ... ... When Edison and Trillium returned two hours later, they found a clean house, the dishwasher humming, and Samantha finishing her homework while Penelope dozed on her perch.''
* WidowWitch
!!The TV series has examples of:
** CanonForeigner: Pete the Delivery Man, fussy law officer Norbert Wainwright, Mrs. Piggle-Wiggle's grown daughter Potsy, and Howard the Hat-Tree, Mrs. Piggle-Wiggle's [[PlantPerson talking tree]] roommate whose branches carry magic hats that provide Mrs. P. with her cures. The kids and their parents also have mostly different names than their book counterparts.
** PragmaticAdaptation: The books' [[LoadsAndLoadsOfCharacters loads and loads of kids with bad habits]] are reduced to a small regular cast who repeatedly need cures.
** SparedByTheAdaptation: Mr. Piggle-Wiggle isn't dead in this version, just away at sea most of the time, and occasionally makes appearances.