Alexei Panshin

Alexis Adams Panshin (born 1940) is an American science fiction and fantasy author and critic. He has written critical works and novels, including the 1968 Nebula Award-winning novel Rite of Passage. He writes under the name Alexei and is called Alexei by his family.
The first widely public noticed book of his was Heinlein In Dimension. Robert A. Heinlein was strongly against to it, and attempted to stop its publication, threatening to sue the publishers. As a result, sections were published in fanzines, winning a Hugo award for best fan activity. That, in turn, helped the book achieve professional publication.
He has published eleven books, four of them with his wife Cory. They also won together Hugo award for Best Non-Fiction Book in 1990 for The World Beyond the Hill.
Many of Alexei Panshin's books are being republished by Phoenix Pick, an imprint of Arc Manor Publishers.