John Sandford's Prey series. I've read 20 out of 26 books in the series.
Author you have read the most books from?
Dear Roy Roy,
That would be Paramahansa Yogananda...modern-day saint born Hinduism but saw the common ground of all spiritual traditions.
Back in the day, I inhaled everything he wrote as fast as I could...ended up appreciating Christianity and Yeshua ben Joseph because of his advocacy.
* * *
Probably my very favorite was his discussion of THE RUBAIYAT OF OMAR KHAYYAM, but I read his two-volume commentary onTHE SECOND COMING OF CHRIST three times, and his translation/commentary of the BHAGAVAD GITA twice.
Tom Clancy
I can think of a few that I've read all their books.
Clive Cussler
Tom Clancy
Dale Brown
Alex Berenson
Preston and Child
J.R. Ward.....Black Dagger Brotherhood, Black Dagger Legacy, Fallen Angels, and The Bourbon Kings
Michael Crichton. I plan on reading all of his books by the time I graduate (:
Terry Pratchett.
Probably Nora Roberts and her pseudonym J.D. Robb. (Now you now my guilty pleasure.) Next would be James Patterson, the Stephen King.
Carla Neggars is one I am working my way through as well.
Now that turned out to be an interesting question for me.
I do a lot of reading, but most of it involves getting information about whatever subjects I think I need additional information on.
So they are more in the nature of serious texts in a specialty I am interested in---and the authors are so much less important (and therefore frequently not remembered) than the context when one does that.
And then I see some of the authors that are listed and remember so many of them.
Jack London, Zane Grey, Louis L'amour, CS Lewis, GK Chesterton, John D MacDonald, Mickey Spillane, Steven King, Frank Slaughter, Tom Clancy, etc., etc..
And when I find an author, regardless of category, I tend to read all of his books---and if I can't find them in print, I will do an interlibrary loan.
John Grisham, James Patterson, Jane Austen, Charles Dickens
Mary Higgins Clark
Katy Lette
Nicholas Sparks.