Today we review a book named Rainmaking Conversations by Mike Schultz and John Doerr. This book is about dialogs that rise about the noise and create engagements. Its a sales book and it teaches the skills, knowledge and processes to excel at winning new business. In this book we get to see that anybody can be a rainmaker with hard work, preparation and proven methods.
RAIN, RASP and the ten rainmaker principles form the core of the RAIN Selling method - the training and the development program that the author's RAIN group use to help create dramatic improvements in sales.
RAIN is an acronym for Rapport, Aspirations and Afflictions, Impact and New Reality. These concepts are the core concepts we use to lead a rainmaking conversation. RAIN is about the things we do between the first meeting where we build rapport to the time when we gain commitment. During this process start finding the gaps that get bigger and bigger between the impact of success and failure and start closing on them to the point where we win commitment. This process is elaborate and we discover more about it in this book. During the discovery of this increasing gaps, we find the initial value gap at the point when we help articulate aspirations and afflictions. The high point in gap occurs when we find the true value gap. At this point, we fully realize the gap between the impact of success and failure.  Then we start altering the new reality to craft a solution that closes the gap.
There are essentially six types of rainmaking conversations.
1. Conversations with anybody - where we begin new relationships, enhance current ones and answer questions like "what do you do "?
2. Prospecting conversations - where we create a conversation that will eventually lead you to sale.
3. Core sale conversations - where we lead each sales call from the first sale to the close.
4. Presentations and product demonstrations - where we deliver key messages and content, share specifics about products and service capabilities.
5. Winning the deal - where we close the sale stage of the process - and open the customer stage
6. Account management and expansion - when we work to service, resell, cross sell, and up sell our current clients.
RASP is about the four keys to rainmaking success.
Companies and individuals  that achieve significantly higher sales results than the rest focus of four areas: Role readiness, action, skills and knowledge, and process (RASP). This is what the best do. The authors note that too often the sales methods focus on sale process and skills, but rarely on readiness, action or knowledge.  The author says this is backward because:
Role readiness:  the degree to which a person is fundamentally prepared to succeed in sales.
Action:  the execution of activities that will lead to sales.
Skills and knowledge: Skills - the various abilities needed to sell, and a degree to which a person can perform them well. Knowledge - the grasp of information needed for selling and the ability to discuss relevant information and topics fluently.
Process: A system or framework in which to perform actions to achieve the best possible sales results.
In short, there is a ton of effort in conversation readiness before the rainmaking conversation that helps to build influence and trust from rapport to commitment.

#coding exercise
Explain sister delegation
public class root { virtual void foo(); }
public class sibling1 { void bar() { foo();}}
public class sibling2 {void foo() { std::cout << "here"; }}