The parent advantage in fostering children's e-book comprehension

•With audio narration, young children can use e-books independent of adults.•Little research has investigated the efficacy of e-book audio narration for learning.•Preschoolers read e-books with audio narration, without narration, or with a parent.•Children learned some content from e-books using audio narration.•Children recalled most about the e-book after reading with a parent.