A Russian-born American novelist, versifier, critic, and popular scientist, Asimov is best known for his science fiction. The author and his family emigrated to the U.S. in 1923. His parents allowed him to read only non-fiction books as a child, which initiated his lifelong interest in science. Asimov had his first book published in 1951 and the following year, under the pseudonym Paul French, he published his first children's book. The author of over 350 fiction and non-fiction books, Asimov wrote 10 hours a day, seven days a week. Asimov also earned a Ph.D. in chemistry at Columbia University, and was as respected an academic biochemist as he was a science fiction writer. An indefatigable lecturer and contributor to newspapers and magazines, Asimov came to be increasingly regarded as a scientific seer, and was responsible for adding the term "robotics" to the English language.