W. Timothy Gallwey (born 1938 in San Francisco) is an author who has written a series of books in which he has set forth a methodology for coaching and for the development of personal and professional excellence in a variety of fields that he calls "the Inner Game". Since he began writing in the 1970s, his books include ''The Inner Game of Tennis'', ''The Inner Game of Golf'', ''The Inner Game of Music'' (with Barry Green), ''Inner Skiing'' and ''The Inner Game of Work''. Gallwey's seminal work is ''The Inner Game of Tennis'', with more than one million copies in print.
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