Haim Shapira is an Israeli mathematician, pianist, speaker, philosopher and game theorist. He writes in Hebrew, and his books have been translated into English, Spanish, German, Portuguese, Italian, Russian and Korean. He is one of the most sought-after lecturers in Israel, and was also a keynote speaker at TEDxJaffa on game theory and strategy. His first two books in English are "Happiness and Other Small Things of Absolute Importance" and "Gladiators, Pirates and Games of Trust". He also arranged and performed music on the soundtrack for John Wick: Chapter 2.