The heretics, the dissidents of common thought, force to question the generally accepted ideas that survive in many cases by inertia. Dissidents improve the thinking of the dissenter. Perhaps for this reason Saint Paul wrote: "It is fitting that there be heretics." In our time the idea of ​​heresy has vanished. But the word lives on to refer to those who deviate from written or unwritten rules.
The heretics had the courage to speak their minds and to die for their ideas. Many of them would have found it easy to back down at the last minute and get out of jail or death, but they didn't, because what they thought they thought honestly, and they did not betray themselves. In these pages the lives of twenty-two of them are outlined. Although they seem fantastic and implausible, they are absolutely real. But of that reality that, as so often, is close to fiction.

- Video in which Antonio Pau presents Heretics

Reviews and criticisms:

- "The essayist Antonio Pau illustrates his passionate defense of freedom of thought by analyzing the life and work of a score of people persecuted by the Church." (Babelia)

- "The reading of Heretics by Antonio Pau serves the author to reflect on the creative capacity of beliefs and how destructive orthodoxy can be when it is not tempered by religious experience." (Álvaro Pombo in The World)

- Interview with Antonio Pau in El Mundo (November 7, 2020).

- «A fascinating book, Herejes, by Antonio Pau has just appeared. It is a short book, written with Azorinian clarity. Its expositional clarity is also notorious and the rigor of the citations and sources is reliable. Most of the twenty-two lives that are glossed in it seem taken from a Borges story, and it is not unlikely that we have ever come across their names reading the Argentine writer: Pelagio, Pedro Valdo, Maestro Eckhart, Servet, Valentín the Gnostic ... ». (Andrés Trapiello in The World)

- Interview in The beam in the eye (November 16, 2020).