Almost 30 years after the Black Monday crash, markets keep reaching new highs. Some are wondering whether we can see a repeat of the 1987 crash.

TheStreet's James Langford sat down with Diana Henriques, the author of "A First-Class Catastrophe: The Road to Black Monday, the Worst Day in Wall Street History." They discussed the warning signs and the lessons investors learned.

Henriques referred to Black Monday as a crystal ball crash and discussed the parallels with the 2008 crash.

This piece is part of series, "Crash of '87 -- TheStreet Special Report" meant to examine, dissect and learn from the stock market crash of 1987, also known as Black Monday. Through a number stories, videos, graphics and other multimedia elements TheStreet takes a look at the cause of the 1987 stock market crash, looks back at some of the hottest stories of the day and looks forward to what could cause a similar crash in the future. Read More about the Crash of 87.

Crash of '87 - TheStreet Special Report

Black Monday made headlines 30 years ago today. Check out our full Crash of '87 Special Report for the ultimate #TBT: