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A qualified doctor who can be booked for a month in advance and a musician who sells out stadiums; a fashion designer who creates clothes for the most famous celebrities and a Nobel Prize-winning scientist - all these people seem to be completely different. But they are all experts in their field, and their opinions are recognised as authoritative and respected. Do you want to develop your own skills from the level of "student" to "expert"? Whether you're starting a new career or continuing your business, learning a language or mastering a musical instrument, the path is always the same, and this groundbreaking book will show you the way to true mastery.