Comics are a multi-billion dollar industry and comic conventions - or cons - attract thousands of fans, desperate to meet their heroes and splash some cash.Elizabeth Hotson visits the MCM event in London to find out what’s hot and what people are spending their hard-earned money on.We hear from Joëlle Jones, a comic book writer and illustrator, Jenny Martin, Event Director at MCM Comic Con and Michael Loizou from Brotherhood Games.Plus tattooist Matt Difa shows off his Star Wars inkings and Vincent Zurzolo, the Chief Operating Officer of Metropolis Collectibles in New York looks back on one of his most memorable comic book sales. Producer: Elizabeth Hotson Presenter: Elizabeth HotsonPicture Description: Comics at Wellcome Trust Superhero exhibition, Picture Credit: Getty Images