Chief Executive Tung Chee-hwa has been depicted as the pig leader on the cover of a Hong Kong version of Animal Farm, which will be unveiled at today's annual book fair. The book uses comics and jokes to comment on recent events including the July 1 protests, the resignation of three radio talk-show hosts and influx of mainland travellers. It is one of three political satires released today by Subculture Ltd, which is known for books that poke fun at political officials, including Silly Old Tung and Broomhead Ip. Publisher Jimmy Pang Chi-ming said he was hoping to sell out all 20,000 copies of the take on the George Orwell classic during the six-day book fair. Since he started publishing satire in 2000, Mr Pang said the annual fair had been his only sales outlet as bookstores turned down the controversial material because of 'political sensitivity'. All the authors of Subculture's satiric titles use pseudonyms. Some are journalists who feared that using their real names would hurt their careers, Mr Pang said. 'We can say whatever we want, but the important thing is our writers are still afraid to use their real names. 'It is heartbreaking,' he said. 'There is supposed to be freedom of speech under 'one country, two systems', but no one is willing to stand out.'