Ann M. Martin

When Kristy Thomas has the great idea to form a baby-sitters club - a chance to earn money and spend time with her friends, all while doing something they each love to do - she has no idea how much the club will change everything....

Mrs. Piggle-Wiggle has gone away unexpectedly and left her niece, Missy Piggle-Wiggle, in charge of the Upside-Down House and the beloved animals who live there....

Stacey starts dating a jock basketball player and falls in with a super-cool crowd, including the cheerleaders who ask her to try out for the squad....

Stacey's so excited! She's invited her friends in the Baby-Sitters Club to New York City for a long weekend. It's going to be perfect - a party and a sleepover on Friday, a big baby-sitting job on Saturday, and lot of sightseeing on Sunday. But what a mistake....

Missy Piggle-Wiggle is finally starting to feel settled in at the upside-down house, and the families in town have come to trust her magical cures for all sorts of childhood (mis)behavior....

Joining the Mathletes and feeling confident after her first math meet triumph, Stacey is troubled when her father gets tickets to a huge rock concert on the same night of the Mathletes championship.

Preparing for her Bat Mitzvah with her twin sister, Abby is falsely accused of cheating on a math test and suspended from school, and she decides to hide the truth about the test and the suspension....

Jessi learns a hard lesson about being deliberately cruel to another person when she sings a song mocking Mr. Trout, the shy, geeky teacher who wears a bad toupee....

When Lou McNally was last in Stoneybrook, she was the Worst Kid Ever. Now she's back...and Abby is going to be her baby-sitter. She's prepared for the worst, but Lou is a perfect angel....

Running a day camp with her fellow club members, Mary Anne finds her ideal summer complicated by her father's two-week business trip, rivalries among the young campers, and a sprained ankle....

Claudia's not worried when she hears her newest baby-sitting charge, Betsy, is a great practical joker. After all, how much harm can one girl do? As it turns out - plenty! Claudia breaks her leg because of one of Betsy's mean jokes - and now she's talking about quitting the club....

Asking her older brother Charlie to train her softball team over spring break, Kristy is convinced that Charlie is a great coach, until he meets Angelica and is no longer able to pay attention to the kids.

Stacey and Mary Anne are baby-sitting for the Pike family for two weeks at the New Jersey shore. Things are great in Sea City: There's a gorgeous house right on the beach, a boardwalk, plenty of sun and sand...and the cutest boy Stacey has ever seen....

Mary Anne agrees to do some housework for Mrs. Towne, an elderly neighbor who had been giving her sewing lessons, but Mary Anne soon realizes that she has become a maid....

Trying to cheer up her twin, Anna, who has been diagnosed with scoliosis, Abby fears that the condition is driving them apart when Anna seems to not want Abby's help and begins to do things on her own....

TBD Kristy's mom is getting married, and everyone is coming to town to help, bringing their kids with them. Fourteen kids! Kristy is sure she and Stacey, Claudia, Mary Anne, and Dawn can handle it - they're professional baby-sitters after all....

Lately, it seems like each of the baby-sitters besides Dawn has been singled out...and she's a little jealous. But now it's Dawn's turn to shine: Mrs. Pike has asked her to help prepare Margo and Claire for the Little Miss Stoneybrook contest....

Danielle's parents are so glad she is home, although still battling leukemia, that they allow the nine-year-old girl to do anything she wants - but she decides to joyride in the family car while Jessi is babysitting for her....

Visiting her father on the west coast, Dawn is tempted to stay with him when she enjoys the beach, Disneyland, and a wealth of healthy restaurants, but the homesick baby-sitter fears leaving her mother and all of her friends....

When Stacey sits for the two Brooke kids, she can't help noticing that their dad is a very cute single father, and the perfect match for her single mom....