Pronounced "peh-chak-cha’’, a mix of show-and-tell, open-mike night and happy hour, it has become the forum for ideas on design, architecture and a lot else that has swept the world in just four years now having taken place in over 80 cities globally. Each presenter is allowed 20 images, each shown for 20 seconds each - giving 6 minutes 40 seconds of fame before the next presenter is up. This keeps presentations concise, the interest level up, and gives more people the chance to show.