Click on the following links to view recommended books at each grade level.
Scholastic Book Wizard allows you to search for books by reading level, grade level, author, or title. You can also use the various links to book lists on the site.
Books for 4th Graders
Books for 5th Graders
Books for Grades 4-6
Books for Reluctant Readers (Grades 3-5)
Books for 3rd Graders http://www.greatschools.org/gk/book-lists/favorite-books-for-third-graders/
Books for 2nd Graders http://www.greatschools.org/gk/book-lists/favorite-books-for-second-graders/
Books for Reluctant Readers (Grade 2) http://www.scholastic.com/parents/resources/book-list/more-book-lists/books-boys-reluctant-readers-grades-1-2