This book is the outcome of the two-year research project .expub | Exploring Expanded Publishing. The project brought together four institutions and publishing initiatives from across Europe: the Institute of Network Cultures (Amsterdam), Aksioma (Ljubljana), Echo Chamber (Brussels), and Nero Editions (Rome). United by a shared curiosity and critical stance toward emergent publishing practices, we set out not to define expanded publishing from above, but to experiment with it in practice, to critically engage with it.