Tilly can't believe it when her best friend, Matty, is asked to be a bridesmaid. In Tilly's favourite daydream, she's kitted out in the most beautiful bridesmaid dress, walking down the aisle behind a beautiful bride. The one wedding she'd really like to attend is her own mum and dad's. But as that's never going to happen, it's time for Tilly to make her own dream come true - and put her bridesmaid services up for hire....

Ruby and Garnet are ten-year-old twins. They're identical, and they do everything together, especially since their mother died three years earlier – but they couldn't be more different. Bossy, bouncy, funny Ruby loves to take charge, and is desperate to be a famous actress, while quiet, sensitive, academic Garnet loves nothing more than to curl up with one of her favourite books.

Dixie is the youngest Diamond girl. She and her sisters – dreamy Martine, glamorous Rochelle and tough Jude – could hardly be more different, but their mum has always tried to teach them the value of sticking together. Now Mum's expecting yet another baby, and she's convinced this one's a boy. She insists they move to a bigger place – but it's rough, dilapidated and filthy, and before they've even unpacked, Mum's gone into labour!

Katy Carr is a lively, daredevil oldest sister in a big family. She loves messing around outdoors, climbing on the garage roof or up a tree, cycling, skateboarding, swinging.... But her life changes in dramatic and unexpected ways after a serious accident. Inspired by the classic novel What Katy Did, Jacqueline Wilson creates an irresistible 21st-century heroine. Fans of Hetty Feather and Tracy Beaker will fall in love with Katy and her family too.

Gemma and Alice were born on the same day and have been devoted best friends ever since. Despite Gemma's larger-than-life personality and Alice's quieter, calmer character, the two are inseparable – until Alice has to move house, all the way to Scotland. Gemma is utterly distraught, particularly at the thought that Alice might find a new best friend. Is there anything Gem's brothers, or perhaps her Grand dad, can do to help?

Floss's parents are divorced, and she divides up her week, spending five days with her mum, her new step-dad and her baby half-brother. The other two days Floss spends with her dad, helping him to run his greasy spoon cafe. But their simple arrangement is thrown into disarray when Floss's mum decides to move to Australia. Making the difficult decision to stay at home, Floss moves in permanently with her dad and they muddle along happily together, surviving on chip butties and enjoying visits to the local funfair.

It’s 1953, the year Elizabeth is to be crowned Queen of England. Elsie Kettle can't wait to go to London to see the celebrations on Coronation Day. Elsie lives with her Nan – her mum works as a showgirl, so she's not around very often. Spirited and imaginative, but often lonely, Elsie longs for a best friend. Luckily, she and Nan are very close; Elsie just wishes she was allowed a cat to keep her company sometimes.

Ella's mum is in a deep coma, having just had a new baby. That means Ella has to live with Jack, her hopeless stepfather, and cope with her tiny newborn brother, as well as worrying about Mum. The only thing that's going right is her school project. It's all about whales and how they sing out to each other to attract a mate – sometimes for hours. Maybe a whale song could reach Mum, wherever she is, and bring her back to Ella and baby Samson. Surely it's worth a try?

Em adores her funny, glamorous dad – who cares if he's not her real father? He's wonderful to her, and to her little brother Maxie and sister Vita. True to form at Christmas, Dad gives them fantastic presents, including a real emerald ring for his little Princess Em.Unfortunately he's got another surprise in store – he's leaving them. Will Dad's well-meaning but chaotic attempts to keep seeing Em and the other children help the family come to terms with this new crisis?

Beauty Cookson is no beauty. She's a plain, timid girl who constantly feels inferior to the super-confident, snooty girls at school. Worse than the teasing in the playground, though, is the unpredictable, hurtful criticism from her father. Beauty and her meek, sweet mother live in uneasy fear of his fierce rages, sparked whenever they break one of his fussy house rules.

Sunset lives a life of luxury with her beautiful ex-model mum, her world-famous ex-rocker dad, and two little celeb siblings. But life on the red carpet is no compensation for rowing parents, constant nagging, intensive media scrutiny, and no real friends. Destiny, on the other hand, is an only child living on a rundown estate with a sickly but devoted mum who constantly tells her she's really the daughter of a famous former rock star...

Amy, Bella, Chloe, Daisy and Emily are friends at school and have their own Alphabet Club (just look at their initials!). Daisy is the newest member and is desperate to fit in, even though Chloe is distinctly unfriendly to her at times. Throughout Daisy’s first year at the school, the girls plan ever-more elaborate sleepover parties for their birthdays. Daisy is dreading the time when her birthday comes round as she doesn’t know what her friends will make of sleeping over at her home, with her rather special older sister.

Quiet, cautious Pearl has always adored her bold, brash, bad big sister Jodie. When their parents get new jobs at a grand, fusty old boarding school, Melchester College, the girls have to move there – and when they arrive, things start to change. Jodie has always been the leader – but now it's Pearl who's making new friends. Jodie just seems to be getting into more and more trouble – arguing with Mum, scaring the little children, flirting with the gardener.

Clover Moon's imagination is her best escape from a life of hardship in poverty-stricken Victorian London. When tragedy plunges her into a world of grief, Clover realises that everything she loved about the place she called home is gone. Clover hears of a place she could run to, but where will she find the courage - and the chance - to break free? And could leaving her family be just what she needs to find a place that really feels like home?

Shy, mild Mandy has been bullied at school for as long as she can remember. That's why she is delighted when cheeky, daring, full-of-fun Tanya picks her as a friend.Mum isn't happy – she thinks Tanya's a BAD GIRL and a bad influence on her daughter. But Mandy loves spending time with her brilliant new friend, and is sure Tanya can only get her out of trouble, not into it ... or could she?