Creativity often challenges generally accepted assumptions and standards. New ideas, after all, are new because they deviate from the norm, flout convention and break rules. But are there rules that shouldn’t be broken, and if so, who decides which ones? In olden times explorers set out to discover new worlds, new possibilities and new resources. Today we debate whether they were heroes and pioneers or opportunistic invaders who despoiled virgin territories, subjugated native civilisations and destroyed historic cultures. This issue of Works That Work explores creativity on the edge of legality and beyond.