Ivy + Bean

1. 

   Book 3

   Ivy + Bean break the fossil record

   Annie Barrows

2. What's the Big IdeaAnnie BarrowsBarrows

   W

   Book 7

   What's the Big Idea

   Annie Barrows

3. Ivy + Bean take the caseAnnie BarrowsBarrows

   I

   Book 10

   Ivy + Bean take the case

   Annie Barrows

4. Ivy + Bean Make the RulesAnnie BarrowsBarrows

   I

   Ivy + Bean Make the Rules

   Annie Barrows

Book data and covers from Open Library (openlibrary.org).