You Don't Have to be Evil to Work Here, But it Helps — Tom Holt

 A novel set in the magical offices of The Portable Door, now a majorly fantastical film starring Christoph Waltz, Sam Neill, and Miranda Otto.
 
“Tom Holt may be the most imaginative satirist to land on our shores since Douglas Adams.” -- Christopher Moore, New York Times bestselling author
 
Colin Hollinghead is a young man going nowhere fast. Working for his dad might have seemed like a good idea at the time, but starting at the bottom in the widget-making industry has, predictably, lost its appeal. And now the business is in trouble.

At least his father has a plan to turn things around �" a new work force that will improve profit margins and secure the company's future for all eternity. The deal looks great on paper, but they do say that the devil is in the detail �" and the arch fiend definitely seems to be involved in some capacity. Colin needs help. Perhaps his new friend from J.W. Wells & Co. (Practical and Effective Magicians, Sorcerers and Supernatural Consultants) can help. . .

The J.W. Wells & Co. Series:
The Portable Door
In Your Dreams
Earth, Air, Fire and Custard
You Don't Have to Be Evil to Work Here, But It Helps
The Better Mousetrap
May Contain Traces of Magic

Other titles from Tom Holt:
Doughnut
When It's A Jar
The Outsorcerer's Apprentice
The Good, the Bad and the Smug
The Management Style of the Supreme Beings
An Orc on the Wild Side

Holt Writing as K. J. Parker:
Sixteen Ways to Defend a Walled City
How To Rule An Empire and Get Away With It
A Practical Guide to Conquering the World