"The Penderwicks Series" is a collection of children's novels written by Jeanne Birdsall. The series follows the adventures of the four Penderwick sisters—Rosalind, Skye, Jane, and Batty—as they navigate life, family, and friendship. Set in various locations, including a charming summer estate, the stories highlight the sisters' strong bond and their imaginative escapades. The series consists of five books, starting with "The Penderwicks: A Summer Tale of Four Sisters, Two Rabbits, and a Very Interesting Boy." Each book captures the essence of childhood, emphasizing themes of love, loyalty, and the importance of family. The Penderwicks' adventures resonate with readers of all ages.