"Take Control of your Destiny with a Proactive Business Development Methodology that Guarantees Revenue Results" Proactive Business Development Professional generally have no concerns in a changing environment. In a challenging economy 80% of the business that was available under good circumstances still exists. Those who know professional business development continue to feast, while their reactive competition is waiting to reactively bid. Mastering the Art of Business Development is the original training book written by William B. Scheessele, the process and principles discussed are as relevant today as they were when this book was written. This book explains the MBDi proprietary and trademarked process and the twelve core competencies of business development professionals. Including the four cornerstones of business development and how to utilize them to achieve win/win situations for the individual, the company and the client.