Greta and her friend Mari are going into the sixth grade this year! But when they get to the first day of school, that's when disaster strikes. Tiffy, the "boss of the whole sixth grade," is the bully, from flipping her hair to talking trash about her peers. But will Greta and Mari survive their sixth-grade year with the bullies and adjusting? They aren't even in the same classes! Find out the answer by reading Boss of the Whole Sixth Grade by Ann Herrick.

In Boss of the Whole Sixth Grade, Greta Zipp is just starting 6th grade and it's off to a shaky start. First of all, she hasn't been paired in the same class with her best friend Mari. They've been together every other year.  Second of all, she ends up running for class president even though she never signed up for class president. Then there's Kiki - the girl she's running against for class president. Kiki is making her life miserable. This book is mainly about Greta's struggles with 6th grade, friendships, and her class president campaign.

Greta Zipp has always been in the same class as her best friend, Mari Yamada. “We've always had the same teacher.