I love the humor in the Robert Asprin MYTH books. A lot of tongue-in-cheek humor. If you like Terry Pratchett\'s DISCWORLD novels or Douglas Adams\' HITCHIKERS GUIDE TO THE GALAXY, then you will love this book and this series.
Apirin's multi-dimensional humor/fantasy is pretty hit-and-miss. This one is essentially a couple of short stories focusing on different members of his team, plus a novelette in which main character Skeeve goes off to the Pervect Dimension in search of his buddy Aahz.