Eloy Moreno's (Castellón) passion for writing led him into the adventure of self-publishing his first novel, El bolígrafo de gel verde (The Green Gel Ballpoint Pen) which has sold more than 200,000 copies. His second book, Lo que encontré bajo el sofá (What I Found Under the Sofa, 2013) also connected with thousands of readers, many of whom accompanied him on the journeys he makes through Toledo, reliving the plot of the book. In 2015 he published his third novel, El Regalo (The Gift), which was successful both in terms of sales and critical reception. In 2018 he published Invisible, which has now appeared in 20 editions and been translated into various languages. His last novel, Tierra (Earth, 2020), went to the top of the bestseller list as soon as it was published. He has also published the collection Cuentos para entender el mundo (Stories for Understanding the World) a book for adults and children, and a picture book, Juntos (Together, 2020).