Since its first event in 1975, Comiket has grown annually in scale and attendance. In recent years, it has become one of Japan's largest indoor events organized by a private group, attracting approximately 35,000 exhibitors and 500,000 to 600,000 participants. The "88" denotes the 88th event. Held over three days each in summer and winter, the summer event is particularly notorious for its heat and crowds, making it notoriously grueling. The massive lines for entry regularly become news stories.