If you like light-hearted fantasy...

Let's see:

Piers Anthony's Magic of Xanth series. The first one is A Spell for
Chameleon. Here's a review:
Amazon.com
Though already developing a successful career in SF with such heady
novels as Chthon and Omnivore, Piers Anthony did not reach brand-name
status until he cooked up some fantasy in 1977. And it was cheerful,
humorous fantasy at that, as in his first Xanth series novel, A Spell
for Chameleon. The book's young hero, Bink, is without magical powers in
a world ruled entirely by magic. Worse still, if he doesn't discover his
own magical talent soon, he will be forever banished from his homeland.
Naturally, it takes an epic quest for Bink to learn what his unique
talent truly is--and perhaps to win the girl of his dreams as well. A
Spell for Chameleon was the very first of Anthony's bestselling (and
still ongoing) humorous fantasy series. Noteworthy for their outrageous
word puns and bizarre characters, the Xanth books are a light yet often
satisfying brew, especially when compared with the author's sometimes
nihilistic and ultraviolent hard SF. --Stanley Wiater --This text refers
to the Paperback edition.

The Chronicles of Amber by Roger Zelazney are frequently
tongue-in-cheek, and its characters are brilliantly drawn. The first
book is technically Nine Princes in Amber but you can often find all of
the original books in a two-volume set. Again, a summary:

Awakening in an Earth hospital unable to remember who he is or where he
came from, Corwin is amazed to learn that he is one of the sons of
Oberon, King of Amber, and is the rightful successor to the crown in a
parallel world.

Callahan's Crosstime Saloon by Spider Robinson.
"A mixed group of regulars--from time travelers to talking dogs--gathers
for companionship and conversation at Callahan's Crosstime Saloon. The
regulars swap jokes, drink, and tell tales. In the process, they find
humanity in everybody--even aliens--and find ways to save the world from
self-destruction.
From a three-time Hugo award-winner.

Operation Chaos by Poul Anderson


Good Omens by Neil Gaiman and Terry Pratchett.
Library Journal: "The birth of the Antichrist in a London hospital
begins the countdown to Armageddon. As the forces of both Heaven and
Hell anticipate the coming battle to decide the world's fate, a
desperate few--including an angel with a taste for rare books, a demon in mirrorshades, the descendant of the world's most accurate prophetess, a part-time
witchfinder, four young children, and a dog--race against time to
prevent it. Irreverently funny and unexpectedly wise, this collaboration
between comics writer Gaiman and Discworld series author Pratchett fuses
fantasy and comedy into an untrammeled romp through the latter days.
Highly recommended for fantasy and general fiction collections."

Bimbos of the Death Sun by Sharyn McCrumb
"For one fateful weekend, the annual science fiction and fantasy
convention, Rubicon, has all but taken over a usually ordinary hotel.
Now the
halls are alive with Trekkies, tech nerds, and fantasy gamers in their
Viking finery *all of them eager to hail their hero, bestselling fantasy
author Appin Dungannon: a diminutive despot whose towering ego more than
compensates for his 5' 1" height . . . and whose gleeful disdain for his
fawning fans is legendary.

Hurling insults and furniture with equal abandon, the terrible, tiny
author proceeds to alienate ersatz aliens and make-believe warriors at
warp speed. But somewhere between the costume contest and the exhibition
Dungeons & Dragons game, Dungannon gets done in. While die-hard fans of
Dungannon's seemingly endless sword-and-sorcery series wonder how
they'll go on and hucksters wonder how much they can get for the dead
man's autograph, a hapless cop wonders, Who would want to kill Appin
Dungannon? But the real question, as the harried convention organizers know, is Who wouldn't?"

The Stainless Steel Rat Is Born by Harry Harrison
"This thrilling volume in the saga of James diGriz explores his humble
beginnings as a petty criminal on the backward planet of Bit O'Heaven,
and his rapid rise to the most wanted man on a dozen worlds. And it
contains the never-before-told story of the fabled archcriminal known as
The Bishop, who tutored young Jim in the higher arts of crime and gave
him his legendary nickname. A rousing, rolicking, often touching tale, A
Stainless Steel Rat Is Born is a stirring portrait of a man who learned
to laugh at the laws that bind ordinary men."

Let me know if this list helps you out. If you're looking for something
more specific, I can look a bit longer.

--
Virginia C. Johnson
Web Development Librarian