Lots of different works are categorized as non-fiction, including scientific works and essays, travel books, biographies, memoirs, collections of letters, manuals, dictionaries, encyclopaedias, practical guides or self-help books.
This is, without doubt, one of the types of work that publishers have been most successful with in terms of digital media. Illustrated stories, interactive games, educational puzzles, visual atlases or books with multimedia activities offer the perfect framework for innovation and experimentation.
Homer, Virgil, St Augustine, Cervantes, Montaigne, Flaubert, Galdós and Pla continue to be published and studied, and will go on being published and studied in the future. However, the publication of the classics of world literature, like these and many others, is currently undergoing changes that go beyond the medium itself and require a reassessment of how they're produced and distributed.
Academic and text books play a key role in teaching and research. The current context of technological advances, new communication media and new learning platforms, and the growing influence of social media in education and academia have led to a profound reassessment of how these works are published.