L'autore:
* Stan and Jan Berenstain were both born in 1923 in Philadelphia. They didn't know each other as children, but met later at school, at the Philadelphia College of Art. They liked each other right away, and found out that the both enjoyed the same kinds of books, plays, music and art.
* During World War II, Stan was a medical assistant in the Army, and Jan worked in an airplane factory. When the war was over, they got married and began to work together as artists and writers, primarily drawing cartoons for popular magazines.
* After having their two sons Leo and Michael, the Berenstains decided to write some funny children's books that their children and other children could read and enjoy.
* Their first publish
Dalla seconda/terza di copertina:
ar tells the cubs why they should never talk to strangers, Sister begins to view all strangers as evil until Mama brings some common sense to the problem. "The Bears' rules for safe conduct among strangers are listed on the last pages, including a rule about the privacy of a bear's body. A good book to start awareness in young children."--School Library Journal.
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