"Celebrating her forty-fifth birthday at her local pub, popular podcaster Alix Summers crosses paths with an unassuming woman called Josie Fair. Josie, it turns out, is also celebrating her forty-fifth birthday. They are, in fact, birthday twins. A few days later, Alix and Josie bump into each other again, this time outside Alix's children's school. Josie has been listening to Alix's podcasts and thinks she might be an interesting subject for her...

When Mr. Putter and Tabby take Mrs. Teaberry to the Conservatory for her birthday, Zeke tries his best to stay out of trouble, but one of the trees is irresistible.

Six-year-old Danny invites his dinosaur friend to come to his birthday party.

"Sloane Parker is dreading her birthday. She doesn't need a reminder she's getting older, or that she's feeling indifferent about her own life. Her husband surprises her with a birthday-weekend getaway--not with him, but with Sloane's longtime best friend, troublemaker extraordinaire Naomi. Sloane anticipates a weekend of wine tastings and cozy robes and strategic avoidance of issues she'd rather not confront, like her husband's repeated infidelity....

Children excitedly discuss the details of their upcoming birthdays.

On her fourth Leap birthday, when she turns sixteen, Josie has a number of momentous experiences, including taking her driver's test, auditioning for a school play, and celebrating with her family and friends.

"It's Zinnia Gray's twenty-first birthday, which is extra-special because it's the last birthday she'll ever have. When she was young, an industrial accident left Zinnia with a rare condition. Not much is known about her illness, just that no-one has lived past twenty-one. Her best friend Charm is intent on making Zinnia's last birthday special with a full sleeping beauty experience, complete with a tower and a spinning wheel. But when Zinnia pricks...

Gary Lizard gets a party, balloons, cake, ice cream, and everything else he wants for his birthday.

With the arrival of August, Zinnia, the youngest of the Huit octuplets, eagerly anticipates getting her power and gift, both of which hold big surprises that are revealed to the sisters on their eighth birthday.