"Send people off with the time and space to think properly and the quality of their ideas will probably improve." Perhaps more than any other category of professionals, creative types are expected to thrive in brainstorms. In the public’s imagination, their offices are filled with fidget toys and Post-it notes in an array of colors, all meant to absorb some of the energy of a group of fast-thinking, well-dressed hipsters deep in ideation mode. But a new report based on a survey of 20,000 creatives from 197 countries suggests that, in fact, a majority of these professionals—including writers, musicians, photographers, and podcasters—find that brainstorming is largely unhelpful for solving a creative challenge.