1. From words to acts? Philip van der Eijk and Marco Formisano; 2. The poetics of knowledge Marco Formisano; 3. Machines on paper: from words to acts in ancient mechanics Markus Asper; 4. Si quis voluerit: Vitruvius on architecture as 'the art of the possible' Elisa Romano; 5. Caesar's Rhine bridge and its feasibility in Giovanni Giocondo's Expositio pontis Ronny Kaiser; 6. From words to acts: on the applicability of Hippocratic therapy Pilar Pérez Cañizares; 7. Naso magister erat – sed cui bono? On not taking the poet's teaching seriously Alison Sharrock; 8. From technē to kakotechnia: use and abuse of ancient cosmetic texts Laurence Totelin; 9. From discourses to handbook: the Encheiridion of Epictetus as a practical guide to life Gerard Boter; 10. The problem of practical applicability in Ptolemy's Geography Klaus Geus; 11. Living according to the seasons – the power of parapēgmata Gerd Grasshoff; 12. Auctoritas in the garden: Columella's poetic strategy in De re rustica 10 Christiane Reitz; 13. The generous text: animal intuition, human knowledge, and written transmission in Pliny's books on medicine Brooke Holmes; 14. From descriptions to acts: the paradoxical animals of the ancients from a cognitive perspective Pietro Li Causi.