Business Book Club
Mastering the Complex Sale
by Jeff Thull
Buy book: $15.72
Fluctuating customer requirements and competitive forces are putting more pressure on sales professionals. Setting yourself apart from the competition is tough. To succeed demands superior strategies and precise execution. For two decades Jeff Thull has been teaching leading-edge strategies to professionals involved in complex sales.

I'm surprised to find a book on sales that isn't predictable and common sense--something that anyone can figure out for themselves.
I'm definitely going to check this one out.