To promote nationwide literacy among 1st to 6th graders and encourage more reading during the summer , Barnes & Noble has started a summer challenge where if children read 8 books and write about their reading , Barnes & Noble will give the readers a free book . To promote nationwide literacy among 1st to 6th graders and encourage more reading during the summer , Barnes & Noble has implemented a summer challenge where if children read 8 books and write about their reading , Barnes & Noble will give the readers a free book .