Jan Berenstain did not write books on her own. She collaborated with her husband, Stan Berenstain, on all their works. Together, they are best known for the "Berenstain Bears" series.
Some of their most popular books include:
* The Berenstain Bears' Big Honey Hunt
* The Berenstain Bears' Trouble with Money
* The Berenstain Bears' Christmas Tree
* The Berenstain Bears' Forget-Me-Nots
* The Berenstain Bears' Go to School
* The Berenstain Bears' Get Along
* The Berenstain Bears' New Baby
Jan Berenstain also illustrated many of their books.
It's important to note that Stan Berenstain passed away in 2005, but Jan Berenstain continued to write and illustrate the "Berenstain Bears" books until her death in 2012.