Bias in the interview process
On a few occasions I've rolled out advanced interviewing courses. The target groups were often senior managers. Unfortunately the slides that went with those courses have long been lost.
From experience the most powerful part of the courses was a discussion of the typical types of bias that can occur. If you understand the typical types of bias you are more likely to understand when you're being biased, and a good interviewer can then counter it or ensure that you gather additional data to qualify it.
Wikipedia has a list of typical cognitive biases in it's article on Buyer decision processes. Most can be directly applied to the selection process.