Bookyards author for today is Arthur C. Clarke.
Among Arthur Clarke's collection of books, my favorites were the Rama Series, Tales of the White Hart, and my favorite by far ..... Childhood's End. His book 2001 is also on the top of any "to read list", as well as the short story, The Nine Billion Names Of God.
The booksites that have his books and have dedicated a post to him are:
Freebookspot -- 40 Books In Different Formats – Freebookspot
Burgomeister -- Books By Arthur C. Clarke (need to scroll down)
For more books:Bookyards has a small collection of
science fiction books here.
Bookyards has also put together a collection of free online libraries that focus on science fiction. that
link is here.