Families who loved Happy Birthday, Dear Octopus! by Ulla Sainio often look for books with a similar feel. These 20 recommendations were selected for their similarity in style, theme, and reading level.
Reach for this book when your child is beginning to navigate the social dynamics of gift-giving and group celebrations. It is a gentle tool for kids who are learning that the joy of a party comes from the effort we put into making others feel special. The story follows a group of mermaids as they prepare a surprise birthday party for their friend Octopus, focusing on the collaborative planning and the excitement of the big reveal. While the setting is a whimsical underwater fantasy, the emotional core is deeply grounded in prosocial behavior and the rewards of being a good friend. It is perfectly pitched for preschoolers and young elementary students who are developing their sense of empathy and community. Parents will appreciate how it models organized kindness and the simple, pure joy of seeing a friend happy without any complicated conflict or high-stress drama.