To Sell is Human
Daniel Pink, former speechwriter for Al Gore, has written an unconventional book on sales called To Sell is Human. In this well researched book, Pink observes a few surprising evolutions in society and their impact on sales.
The hard sell is dead. Enabled by the internet, prospective buyers know more about a product than a salesperson. This is true for cars as much as enterprise software. As a result, the salesperson no longer leverages an information asymmetry to sell a product. Instead, the salesperson must negotiate from the very first word, identify a customer problem and solve the problem using a product. Sales is evolving to consulting.