A book won't help you making the actual sale. It can provide you some guidelines (SPIN, Miller Heimann, Sales 2.0, DISC, Challenger Sale and many more) and conf

A book won't help you making the actual sale. It can provide you some guidelines (SPIN, Miller Heimann, Sales 2.0, DISC, Challenger Sale and many more) and confidence to actually start, but eventually the complexity of the actual sale can be mapped to the weather. However if you have identified the clients budget, mapped their stakeholders, communicate with the decision makers and you have created the need and urgency for your solution, you can increase the likelyhood of coming to a sale. Even tough things will happen outside of your control.....