Author
David J. Schwartz
David J. Schwartz was an American professor with a doctorate who taught at a university and for many years ran training courses for salespeople and managers. His book “The Magic of Thinking Big”, according to its publisher, has helped millions of people.
Books in Livria
- The Magic of Thinking Big
Why does one salesman earn five times more than his colleagues when he is no smarter than they are? Professor David Schwartz watched people at his training courses for years and came to a conclusion: it is not about…