"Doc" Smith is one of the three supernovas to hit the SF field. He hit it in 1928, with the publication of The Skylark of Space, a book which he had written 10 years earlier but which he had been unable to sell.
I've been writing notes on each book I've read for a while now, and an unreasonable proportion (for somebody dead since 1965) have been Doc Smith.
See them all here .