Jonathan Sibley coaches business leaders, executives, and management teams to greater effectiveness in English, French, Spanish, Portuguese, and German. Jonathan helps his clients to better understand how their performance compares to the expectations of their key constituencies, to identify and overcome important blind-spots and obstacles to greater effectiveness, to enhance and build on their strengths while finding strategies to compensate for and improve upon weaker areas, and to improve key business relationships through more effective communication. Jonathan holds an MBA from INSEAD in Fontainebleau, France, an MSW from Columbia University, and a BA from Princeton University.