The Berenstain Bears is a popular children's book series created by Stan and Jan Berenstain. The stories follow a family of bears living in Bear Country, focusing on Papa Bear, Mama Bear, Brother Bear, and Sister Bear. Each book addresses various life lessons and moral themes, making them relatable for young readers. The series began in 1962 and has expanded to include over 300 titles. The books are known for their colorful illustrations and engaging narratives. The Berenstain Bears have also been adapted into animated television shows and merchandise, further increasing their popularity among children and families.