Atheriel
The Incarnations of Immortality: all by Pierse Anthony. one of the greatest science fiction writers of all time. Also writes great fantasy fiction, Xanth series and the Blue Adept series.
I have to agree with Atheriel. Piers Anthony is an amazing author. There is an intelligence to his work that just sucks you in, and then you are held by the originality.
For more lighthearted fare I tend towards British author Terry Pratchett. His Discworld books have long been a favorite of mine, and I now find myself being slowly drawn into the world of 'Wee Free Men'. Pratchett's work is imbued with a humor all their own and are engaging enough that I find myself visiting again and again.
Finally, let's not forget one of my all time favorite authors. I speak of the creator of such fair as
I Have No Mouth and I Must Scream, Mephisto in Onyx, and one of my personal favorites,
"Repent, Harlequin!"Said the Ticktock Man. Harlan Ellison has long been the center of many controvercies, including a physical assault on Charles Pratt at the Nebula Awards Banquet.
I think that's it for me today. I wish you all good reading.