After you finish the trilogy, try to get a copy of Harvard Lampoon's novel, "Bored of the Rings." It is a hilarious takeoff.
I have it; the adventures of Frito, Dildo and Goodgulf against Sorehed and his Nozdruls is one of the great works of Western Literature :-)
The great thing about the Lampoon parody novels is they also cleverly parody even the writing style and sentence structure of the author..."Doon" is another great one.