A sub series of the CoDominium Universe by Jerry Pournellle and S M Stirling.

A duology by Marion Zimmer Bradley which was later incorporated in the Avalon series by Diana L Paxson.

One novelization and one rewrite by Isaac Asimov to make it the way he would have written the original premis.

A series of novels by Neil Peart with non-fiction tales relating to his life.

A anthology series of short stories edited by Jerry Pournelle and Jim Baen.  This was a continuation of sorts of the anthology series Destinies and which itself later became the series New Destinies.

A fantasy series by Robin Hobb set in the Realm of the Elderlings.

Set two years after the Legacy of the Force series.

A series of science fiction novels by Adrian Tchaikovsky

A series of fanasy novels by Guy Gavriel Kay.

A series of science fiction novels based on the television show Firelfy.

A prequel series to the Ender's Game series.

A series of novels written by Joe Abercrombie that take place in the same world that the original First Law trilogy did.

A series of fantasy novels by Joe Abercrombie.

A fantasy series by Robin Hobb set in the Realm of the Elderlings.

A fantasy series written by Brian Lee Durfee

A series set in the Known Space universe of Larry Niven.

A science fiction series by C J Cherryh.

A series of science fiction books written by Isaac Asimov.  They also tie in with the Robot series.

A science fiction series by Jack L Chalker featuring a system of worlds where once visited, you can never return and where technology doesn't work.

A series that encompasses stories written by Robert Heinlein.

A series of novels by Isaac Asimov

A series of science fiction novels written by Stephen R Donaldson.

A Russian science fiction series (Геном in Russian) by Sergei Lukyanenko.  At this time only the book titled Genome has been translated into English.

A series of fantasy novels written by Scott Lynch.

A manga series by Masamune Shirow.

A science fiction series by James P Hogan.  Also known as the Minervan Experiment.

A series of dystopian science fiction geared toward teens and young adults written by Lois Lowry.

A series of fiction novels written by Mario Puzo.

A series of science fiction/fantasy books written by John Norman.  Also called the Counter-Earth series as they all take place on Gor, a world on the opposite side of the sun from the Earth.

A series of novles from the 40s and 50s by Mervyn Peake and finished by Maeve Gilmore.

A series of fantasy novels by Stephen R Donaldson.

An urban fantasy series by Fonda Lee.

A science fiction series by Lin Carter.

A supernatural adventure series by Kit Richardson focused around the main character Harper Blaine, a Seattle PI.

A series of science fiction novels by A Bertrand Chandler.  These are set within the Rim Worlds series.

A series of science fiction novels by A Bertrand Chandler.  These are set within the Rim Worlds series.

A series of fiction books written by Leigh Bardugo.

A series of science-fiction books by M G Herron.

A series by Stephen King and Richard Chizmar.  Also know as the Button Box series or Gwendy's Button Box series.

A series of science fiction books by Ursula K LeGuin.

A science fiction dualogy in the Alliance-Union universe by C J Cherryh.

Star Wars series

A dystopian series by Margaret Atwood.

A series of middle grade novels written to appeal to young boys starring two brothers of a famous detective solving their own mysteries.  They were written by serveral people using the pen name Franklin W Dixon.

A series of middle grade novels written to appeal to young boys starring two brothers, the sons of a famous detective, solving their own mysteries.  They were written by several people using the pen name Franklin W Dixon.

A series of Pern books.

A series of fictional crime novels written by Michael Connelly.

Novels that take place within the same world that Harry Bosch exists.  Written by Michael Connelly

The Harry Potter series by JK Rowling.