Oleg Ledeniov was born in Moscow and grew up on books by Martin Gardner and Raymond Smullyan. After moving to Israel, he earned B.A. summa cum laude and M.Sc. in Computer Science from Technion, where he specialized in Artificial Intelligence and Machine Learning. He got his first taste of teaching as a teaching assistant at Technion and at the Open University of Israel. After graduation, Oleg worked as a software engineer in several companies. He is currently employed by GE Healthcare and creates imaging software for radiologists, which is used in hundreds of major hospitals worldwide. Oleg joined Math-M-Addicts in 2018 and is happy to be a part of this fantastic school.