 In order to do this, city governments will hire consulting firms to advise them on how to boost their creative potential, thus creating an industry and a class of expertise centered around creative cities.In the first years of the 21st century, the publication of John Howkins's "The Creative Economy" and Richard Florida's "The Rise of the Creative Class" gave the movement a dramatic lift as global restructuring was hitting deep into the US.Florida's book hit a nerve with its clever slogans such as "talent, technology, tolerance" and interesting sounding indicators like the "bohemian index" or the "gay index", that gave numbers to ideas.