So, incoming eighth-graders, if you are wondering what to read, you can search Barnes & Noble for grade level-appropriate books, using a measurement called "Lexile score."
I did it for you, and sorted the list by what is most popular. Give it a look!
http://productsearch.barnesandnoble.com/search/results.aspx?SRT=SA&DREF=1&STORE=ALL&SZE=10&LEXILE=830^1090&SAT=1