The Baby-Sitters Club Wiki
The Baby-Sitters Club Wiki
This article is about the original novel. For the graphic novel, see Kristy's Big Day (Graphic Novel). For the Netflix episode, see Kristy's Big Day (episode).

Kristy's Big Day is the sixth book in The Baby-Sitters Club series. The graphic novel, adapted and illustrated by Gale Galligan, was the sixth overall and was published in 2018.

Back Cover Summary

Kristy's mom is getting married, and Kristy's a bridesmaid. The only trouble is, fourteen little kids are coming to the wedding, and they all need baby-sitters. Here comes the Baby-sitters Club!

Stacey, Claudia, Mary Anne, Dawn, and Kristy think they can handle fourteen kids. But that's before they spend five days changing diapers, stopping fights, solving mix-ups, righting wrongs...and getting sick and tried of baby-sitting!

One thing's for sure: This is a crazy way to have a wedding. But it's a great way to have a lot of fun!

Main Plot

Kristy is a bridesmaid at the wedding and the club sits for 14 children of the guests, which causes much chaos.


Kristy's mother gets married and Kristy struggles to find her mother the perfect gift. David Michael ends up buying a goldfish for her.


Kristy's Family

Extended Family

BSC Members





Pop Culture and Real-Life References

  • Goodwill
  • Ramada Inn
  • Green Eggs and Ham by Dr. Seuss, Little Women, Winnie-the-Pooh, Mary Poppins, Where the Sidewalk Ends (books)
  • Bugs Bunny, Mickey Mouse (cartoons)
  • TV Guide
  • Sesame Street, Mister Rogers' Neighborhood (TV shows)
  • Frankenstein
  • Tide Laundry detergent
  • A&P
  • I Married a Witch, Bride of Frankenstein, The Wizard of Oz (movies)

Continuity and Inconsistencies



  • On the 1995 front cover illustration, Karen is wearing her pink glasses. But she didn’t get glasses until Karen's School Picture, and that takes place after this book.
  • In older editions on page 35, Seth and Lisa Engle are named Kendall and Sheila (no last name); this is most likely a placeholder name.

Differences in the Reprints

  • The price of inflation: In the 2020 Edition, the hourly rate for the Baby-Sitter Club seems to be $5 / hour. This can be confirmed in Chapter 4 where Kristy's Mom offers the five BSC members a total of $1,000 for 40 hours of work. In an earlier edition (the UK 3-book collection series from 1998), the hourly rate is stated as $3 / hour, making the total come to $600. In the 2018 Graphic Novel, the actual hourly rate is avoided altogether by Kristy's Mom offering "Double the usual club rate". The 2020 edition reads "That comes to two hundred dollars for each of you for the week". The original edition reads "That's three dollars an hour apiece, which comes to a hundred and twenty dollars for each of you for the week".

Ann M. Martin's Dear Reader Letter

Dear Reader,

Ever since I wrote Kristy’s Big Day, it’s been one of my favorite books in the Baby-sitters Club series. It was a lot of fun to write because of all the kids involved in the story. Plus, I think weddings are fun to write about! I also liked Kristy’s Big Day because it’s a family story, and it marks a change—not only in Kristy’s life, but in the series. When Kristy’s mother marries Watson, Kristy acquires a stepfather, and Karen and Andrew become important characters in the books. In fact, Kristy’s little stepsister Karen was becoming such an important character, and I enjoyed writing about her so much, that it was around this time that I began to consider giving her a series of her own. A year later, the first Baby-sitters Little Sister book, Karen's Witch, was published.


  • By 1995 Ann M. Martin chose this as her favorite book of the series.
  • Karen still has a fear of Morbidda Destiny.
  • Charlie wants to try the wine and Elizabeth tells him that he can try it when he turns 21.
  • Karen showed Andrew what a wedding is by getting dressed up and kissing Boo-Boo.
  • Kristy is a bridesmaid, Charlie gave his mom away, Karen is the flower girl, David Michael is the ring bearer, and Sam is Watson's best man. Only Andrew didn't want to participate.
  • The wedding is the first time Kristy wears heels.
  • Jobs scheduled but not seen: Mary Anne for Jenny, Mary Anne for Charlotte, Claudia for Claire and Margo,
  • Reasons the BSC has not to take jobs include: Dawn and Jeff visit their grandparents and Stacey goes for a doctors appointment.
  • Kristy looks great in yellow according to Mary Anne.
  • The last day of school in Stoneybrook is June 19th. At Stacey's old private school the last day was the day before Memorial Day weekend.
  • The final fling is just mentioned but Mary Anne and Dawn didn't go, Claudia went with new student Austin Bentley, Stacey with Pete, and Kristy with Alan. Only Dorianne Wallingford was alone.
  • Richard and Mary Anne take Sharon and Dawn out for dinner.
  • Seth and Lisa go to England for a week.
  • 3 dollars an hour is only slightly more then the BSC makes an hour.
  • An emergency club meeting is held in chapter 5.
  • The Kishi's keep soda in the house despite their junk food ban.
  • Starting in chapter 6, the chapter start labeling how long it is until the wedding.
  • This is the one of the few times Kristy mentions her father's mother.
  • This is the first time the BSC visits Watson's house.
  • Watson and Elizabeth went to Vermont for their honeymoon.
  • This book only has 14 chapters.
  • Kristy was late for a BSC meeting in chapter 3.


Baby-Sitters Club Books
The Summer Before | #1 Kristy's Great Idea | #2 Claudia and the Phantom Phone Calls | #3 The Truth About Stacey | #4 Mary Anne Saves the Day | #5 Dawn and the Impossible Three | #6 Kristy's Big Day | #7 Claudia and Mean Janine | #8 Boy-Crazy Stacey | #9 The Ghost at Dawn's House | #10 Logan Likes Mary Anne! | #11 Kristy and the Snobs | #12 Claudia and the New Girl | #13 Good-bye Stacey, Good-bye | #14 Hello, Mallory | #15 Little Miss Stoneybrook... and Dawn | #16 Jessi's Secret Language | #17 Mary Anne's Bad-Luck Mystery | #18 Stacey's Mistake | #19 Claudia and the Bad Joke | #20 Kristy and the Walking Disaster | #21 Mallory and the Trouble with Twins | #22 Jessi Ramsey, Pet-sitter | #23 Dawn on the Coast | #24 Kristy and the Mother's Day Surprise | #25 Mary Anne and the Search for Tigger | #26 Claudia and the Sad Good-bye | #27 Jessi and the Superbrat | #28 Welcome Back, Stacey! | #29 Mallory and the Mystery Diary | #30 Mary Anne and the Great Romance | #31 Dawn's Wicked Stepsister | #32 Kristy and the Secret of Susan | #33 Claudia and the Great Search | #34 Mary Anne and Too Many Boys | #35 Stacey and the Mystery of Stoneybrook | #36 Jessi's Baby-Sitter | #37 Dawn and the Older Boy | #38 Kristy's Mystery Admirer | #39 Poor Mallory! | #40 Claudia and the Middle School Mystery | #41 Mary Anne vs. Logan | #42 Jessi and the Dance School Phantom | #43 Stacey's Emergency | #44 Dawn and the Big Sleepover | #45 Kristy and the Baby Parade | #46 Mary Anne Misses Logan | #47 Mallory on Strike | #48 Jessi's Wish | #49 Claudia and the Genius of Elm Street | #50 Dawn's Big Date | #51 Stacey's Ex-Best Friend | #52 Mary Anne + 2 Many Babies | #53 Kristy for President | #54 Mallory and the Dream Horse | #55 Jessi's Gold Medal | #56 Keep Out, Claudia! | #57 Dawn Saves the Planet | #58 Stacey's Choice | #59 Mallory Hates Boys (and Gym) | #60 Mary Anne's Makeover | #61 Jessi and the Awful Secret | #62 Kristy and the Worst Kid Ever | #63 Claudia's Freind Friend | #64 Dawn's Family Feud | #65 Stacey's Big Crush | #66 Maid Mary Anne | #67 Dawn's Big Move | #68 Jessi and the Bad Baby-sitter | #69 Get Well Soon, Mallory! | #70 Stacey and the Cheerleaders | #71 Claudia and the Perfect Boy | #72 Dawn and the We Love Kids Club | #73 Mary Anne and Miss Priss | #74 Kristy and the Copycat | #75 Jessi's Horrible Prank | #76 Stacey's Lie | #77 Dawn and Whitney, Friends Forever | #78 Claudia and Crazy Peaches | #79 Mary Anne Breaks the Rules | #80 Mallory Pike, No. 1 Fan | #81 Kristy and Mr. Mom | #82 Jessi and the Troublemaker | #83 Stacey vs. the BSC | #84 Dawn and the School Spirit War | #85 Claudia Kishi, Live From WSTO! | #86 Mary Anne and Camp BSC | #87 Stacey and the Bad Girls | #88 Farewell, Dawn | #89 Kristy and the Dirty Diapers | #90 Welcome to the BSC, Abby! | #91 Claudia and the First Thanksgiving | #92 Mallory's Christmas Wish | #93 Mary Anne and the Memory Garden | #94 Stacey McGill, Super Sitter | #95 Kristy + Bart = ? | #96 Abby's Lucky Thirteen | #97 Claudia and the World's Cutest Baby | #98 Dawn and Too Many Sitters | #99 Stacey's Broken Heart | #100 Kristy's Worst Idea | #101 Claudia Kishi, Middle School Dropout | #102 Mary Anne and the Little Princess | #103 Happy Holidays, Jessi | #104 Abby's Twin | #105 Stacey the Math Whiz | #106 Claudia, Queen of the Seventh Grade | #107 Mind Your Own Business, Kristy! | #108 Don't Give Up, Mallory! | #109 Mary Anne to the Rescue | #110 Abby the Bad Sport | #111 Stacey's Secret Friend | #112 Kristy and the Sister War | #113 Claudia Makes Up Her Mind | #114 The Secret Life of Mary Anne Spier | #115 Jessi's Big Break | #116 Abby and the Best Kid Ever | #117 Claudia and the Terrible Truth | #118 Kristy Thomas, Dog Trainer | #119 Stacey's Ex-Boyfriend | #120 Mary Anne and the Playground Fight | #121 Abby in Wonderland | #122 Kristy in Charge | #123 Claudia's Big Party | #124 Stacey McGill... Matchmaker? | #125 Mary Anne in the Middle | #126 The All-New Mallory Pike | #127 Abby's Un-Valentine | #128 Claudia and the Little Liar | #129 Kristy at Bat | #130 Stacey's Movie | #131 The Fire at Mary Anne's House
Super Specials
#1 Baby-sitters on Board! | #2 Baby-sitters' Summer Vacation | #3 Baby-sitters' Winter Vacation | #4 Baby-sitters' Island Adventure | #5 California Girls! | #6 New York, New York! | #7 Snowbound | #8 Baby-sitters at Shadow Lake | #9 Starring the Baby-sitters Club #10 Sea City, Here We Come! | #11 The Baby-sitters Remember | #12 Here Come the Bridesmaids! | #13 Aloha, Baby-sitters! | #14 BSC in the USA | #15 Baby-sitters' European Vacation
Portrait Collection
Stacey's Book | Claudia's Book | Dawn's Book | Mary Anne's Book | Kristy's Book | Abby's Book
The Baby-Sitters Club Notebook (1987) | The Baby-Sitters Club Postcard Book (1991) | Trivia & Puzzle Fun Book (1992) | Ann M. Martin: The Story of the author of the Baby-sitters Club (1993) | The Baby-Sitters Club Guide to Babysitting (1993) | The Baby-Sitters Club Chain Letter (1993) | The Baby-Sitters Club Secret Santa (1994) | Audio Books on Cassette Tape (1994-5) | BSC Movie Novelization (1995) | The Complete Guide to the Baby-Sitters Club (1996) | Autograph Book (1998) | BSC Graphic Novels (2006-present) | We Are the Baby-Sitters Club: Essays and Artwork from Grown-Up Readers (2021) | Welcome to Stoneybrook: A Guided Journal (2021) | The Official Coloring Book (2023)