Ivan Antonovich (real patronymic Antipovich) Yefremov (Russian: Иван Ефремов; April 22, 1908–October 5, 1972), last sometimes spelled Efremov, was a Soviet paleontologist, science fiction author and social thinker. He originated taphonomy, the study of fossilization patterns.
Loved this book, multiple interesting and fascinating short stories that left an impact on me after reading them. Shows the Russian nature really well.