This Thesis presents the results of a research made by the triangulation of a qualitative and a quantitative method design try to find out how children may understand narrative content when stories are presented in different forms: as a traditional hard copy book and as an animated e-book in a digital platform such as an e-reader. Since the very first storybook for children, the illustrations that have always been included in such books have gone through many conceptual and technical changes and has evolved from simple line drawings do a wide range of styles. Today we see story books showing colors and textures created through various techniques and resources. Interactive digital media offer a new supporting structure for literary narrative and may provide the means to create a new kind of relationship involving the subject who reads and the unfolding stories as he interacts with the narrative content. In this media, illustration, which has always made part children of story books, acquires a new form, for there is a possibility to explore sensorial resources beyond those enhanced by verbal text and printed illustration and, thus, creates a new way to practice and develop the act of reading. The collected data and the research results can be used by designers, writers, illustrators, pedagogy professionals and school teachers as aiding tools in the effort to stimulate the pleasure of reading by small children after they have learned the alphabet and during the time they struggle to became fully literate.