Biography: Blas Ruiz Grau (Rafal, Alicante, 1984), is a computer programmer and author. He self-published his first novel (La verdad os hará libres) in 2012, with an excellent acceptance among readers and critics. His second work (La profecía de los pecadores, 2013) was a resounding success in sales reaching the number 1 spot on several different bestseller lists including Amazon #1. One of his more recent Works, Kryptos (2015), reached #2 on Amazon in just a few hours and moved on to # 1 shortly afterwards, something that happened repeatedly in country after country where it was released. After this great sales success, he decided to donate all its revenue to the NGO Educo, dedicated to feeding needy children. Soon afterwards he signed with Ediciones B. His latest novel, Siete días de marzo, consolidated his success as an author with its incredible sales in the first week of its release. He will soon be publishing new works. His presence on social media, especially on twitter is active and dynamic. (@BlasRuizGrau).