Mr Kremer was born in Transylvania, in Romania, survived Bergen-Belsen concentration camp and went on to fight in Israel’s war of independence.
He become a professional inventor and licensed the iconic Rubik’s Cube puzzle to be sold all over the world. He also created over 250 games now widely distributed in international markets.
Mr Kremer, a keen essayist, founded Notting Hill Editions in an attempt to revive the form.
In a recent interview with The Bookseller he said that at Belsen he had “seen death by a few millimetres a few times” but it was the essay that “saved [his] life”.
He said: “I discovered the profoundly meaningful idea of the essay in myself first.
“When I was 60, I had a crisis [of mental health]... One morning, I woke up, I went to the typewriter and I started writing. And, I became very quickly aware that, apart from mending myself, I was actually a born essayist. And so it became very close to me. That idea was the beginning of this company.”