books.google.fr - Before the Gates of Excellence is an exceptionally well-written and lively account of the nature of productive creativity or 'genius'. It is a comprehensive survey of knowledge about productive creativity: it explores the theoretical concepts of creativity and the creative process, and attempts to explain...https://books.google.fr/books/about/Before_the_Gates_of_Excellence.html?hl=fr&id=F1M4AAAAIAAJ&utm_source=gb-gplus-shareBefore the Gates of Excellence