In the age of the digital, and with the end of books being repeatedly announced, one might think that the symbolic power of books would have been diminished. This is far from being the case. The aim of this article is to analyze the scope and challenges of the book’s different forms based on a comparative study of Mathias Malzieu's L'Homme Volcan, of the adaptation by Byook of Sherlock Holmes : The Speckled Band/La bande mouchetée and of that of The Fantastic Flying Books of Morris Lessmore by Moonbot studios. The figures of the book illustrate the transition period of media paradigms that we are experiencing and which, in the works, contribute to this quest for identity: between a model to be followed and one from which we must detach ourselves. Through the presence of these figures, the works become meta-mediatic, in the sense that they question their own media status while also questioning the “media ecology” to which they belong, to use Katherine Hayles' terminology (Hayles 2002, 5). At the heart of this reflection is the very nature of this new type of mediation of the literary text. Whether we call them ebooks, “enriched books” or “augmented books”, all these terms express how difficult it is to think about the circulation of texts outside the unavoidable cultural paradigm of the book.