CCBC Recommended Books by Grade Level

From site:

The CCBC has created bibliographies and booklists of recommended books on a wide range of themes and topics. We have organized them into the following categories:

Books for Babies, Toddlers, and Preschoolers
Books for Elementary Age
Books for Middle and High School Age
Complete List (All CCBC Bibliographies of Recommended Books)

Many of the lists include books for a wide range of reading ages and will be found under more than one category.