OPIS Associate Manu Herrán has just published a new book about sentience titled ”Seres que sienten" ("Sentient beings”) in which he exposes the main arguments and evidence demonstrating sentience in animals, and therefore their moral relevance. He uses these same arguments to defend the idea that we must take into account the possibility of the existence of sentience in machines, software simulations and manipulated biological substrates. An English version of the book is expected to be released in the next months. The Spanish version can be bought on Amazon. Benefits from the book will go to the animal shelter La Casita de Lluvia, managed by Adriana Caiaffa, who also created the book's watercolours.