"The Bobbsey Twins" is a series of children's books created by Laura Lee Hope. The stories follow the adventures of two sets of twins, Bert and Nan Bobbsey, and Freddie and Flossie Bobbsey, who live in the fictional town of Lakeport. The series first debuted in 1904 and has been popular for generations. The books focus on the twins' everyday experiences, including family outings, school events, and mysteries to solve. The stories emphasize themes of friendship, teamwork, and family values, making them appealing to young readers. Over the years, the series has expanded to include numerous titles and adaptations.