More than fifty years ago, Random House published the first of more than 300 books about the Berenstain Bears. Many of the most enduring titles are First Time Books®, which explore the myriad of issues that are part of family life and growing up, among them sibling rivalry, parent-child relationships, school, friendships, and the lasting values that are the bedrock of family and community life. To mark this milestone anniversary, we've collected six titles about family A Week at Grandma's ; The Trouble with Grownups ; The Birds, the Bees, and the Berenstain Bears ; Baby Makes Five ; The Papa's Day Surprise ; and The Mama's Day Surprise .