David Aguilar and Ferran Aguilar
David and Ferran Aguilar are from Andorra, a tiny, independent principality situated between France and Spain in the Pyrenees.At the age of 9, he designed his first prosthesis with LEGO bricks and in high school he built the next generation which he named MK-1. Ferran encouraged him to make a video about his prosthesis and the huge role that LEGOs played in his life, and posted it on social media where it went viral and changed both their lives. In addition to telling his story in this book, David is also the protagonist of the Spanish documentary, Mr. Hand Solo, which won the award for best documentary at the Boston Science Fiction Film festival. David's brand, Hand Solo aims to benefit various organizations for the disabled and to fight against the stigma of "diff-ability" as he calls it.
Follow David and Ferran on Twitter @Handsolooficial and @AguilarFerran

Lawrence Schimel
Lawrence Schimel is a bilingual author who writes in both Spanish and English, with more than 100 books to his credit. He is also a prolific literary translator in English and into Spanish. He lives in Madrid, Spain.
Follow him on Twitter @lawrenceschimel