This invaluable grade-by-grade guide (K-6th) is designed to help parents and teachers select some of the best books for children. It will lead you to enriching reading experiences and help your child build on the fundamentals in the popular Core Knowledge Series (What Your Kindergartner-Sixth Grader Needs to Know). Rare among resources guides in its emphasis on nonfiction, Books to Build On provides helpful annotations on excellent books in a wide range of subject areas.