The implication? Parents and teachers should choose basic e-books like the Kindle or Nook over enhanced e-books, such as the iPad, if they want a more literacy-focused co-reading experience with children. Prompting kids with questions that relate to the text, labeling and naming objects, and encouraging kids to talk about the book’s content from their own perspective all elicit kids to be more verbal, and can lead to improved vocabulary and language development, the study states.