The Macau Literary Festival kicks off on Monday minus three writers, including London-based bestselling Wild Swans author Jung Chang, "deemed unwelcome" by Beijing due to the nature of their writings.
Chang has been highly critical of China's political system and her works, including an explosive biography of Mao Zedong, have been banned in the mainland.
The two other authors - New York-based author and investigative journalist Suki Kim and James Church, a pseudonym used by a former Western intelligence officer - have both written about and painted in a negative light North Korea, which counts China as its main ally.
Said festival co-founder and program director Helder Beja: "We were informed informally, unofficially, that there was a high probability that they would not be allowed to enter Macau.
"We advised them not to come because we did not want to put them in that position."