Another tool, very handy for lending out, is Mager's What Every Manager Should Know About Training. It's especially helpful for a client who knows that "training" isn't the solution for everything, but isn't sure what else there is.

Mager talks about performance improvement without using any HPT jargon, fitting it into the context of results at work. The book's still about $25 U.S., and most people can read it inside of two hours. At the end, they're likely to have a more productive view of what training can and can't do... and what opportunities lie beyond.