Relatives of the victims of the 1985 Japan Airlines jumbo jet crash have published a collection of essays as part of efforts to keep alive the tragedy -- which killed 520 people -- ahead of its 20th anniversary on Aug. 12.

The collection is the latest installment of the annual booklet by the relatives* association. Titled ※Akanegumo§ (※Red Clouds※), it takes its name from the clouds those aboard JAL Flight 123 may have seen before the 747 crashed into a mountain in Gunma Prefecture near sunset at 6:56 p.m. that summer day.

It remains the worst single-aircraft accident in aviation history.