Peter wants to invite Amy to his birthday party, but he wants it to be a surprise.

When Bear decides to give the moon a birthday present, he climbs a mountain to get close enough to ask what day is the moon's birthday.

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.

Mr. Putter thinks he is too old to celebrate his birthday, but when he remembers some of his past birthdays, he changes his mind.

After celebrating their first nine same-day birthdays together, Amanda and Leo, having fallen out on their tenth and not speaking to each other for the last year, prepare to celebrate their eleventh birthday separately but peculiar things begin to happen as the day of their birthday begins to repeat itself over and over again.

Despite the objections of Pig and Mouse, Duck insists on adding a special ingredient to the cake they are making to celebrate Cow's birthday.

A little princess decides that two birthdays would be better than one, and three better than two, until every day becomes her birthday, but she soon realizes that the more birthdays she has, the less special they are.

When Samantha's tenth birthday party is spoiled by the boy next door, Aunt Cornelia and her young twin sisters try to ease Samantha's disappointment by inviting her and Grandmary to visit them in New York City.

Henry and his big dog Mudge celebrate Henry's birthday with a piñata, a lively birthday party, and a cake shaped like a fish tank, making May first the best day ever.

"Phineas and Ferb know that when you want to make every day count, birthdays are the perfect excuse to do something extra wild!"--p. [4] of cover.