Espinas, Thorns, about the Franciscan missionary Venerable Friar Antonio Margil de Jesús, was published in a Spanish edition in March 2012 by the Franciscan Province of Saints Peter and Paul of Michoacán, México. The book was reviewed and approved by the postulator of the canonization cause for Venerable Father Antonio Margil de Jesús in Rome, Italy, and is now being translated into English.