Do you have any questions that you’ve been itching to ask a Grateful Dead insider? You’ll get your chance later today when former Grateful Dead publicist and official Grateful Dead historian Dennis McNally hosts an “Ask Me Anything” Q&A session on Reddit.

McNally began running the Grateful Dead’s public relations operation in 1984, holding the job until the band’s dissolution following Jerry Garcia’s death in 1995. He continued working as a publicist for Grateful Dead Productions until the organization shut down in 2004, and he held the same role with Bob Weir’s project RatDog from 2004-2008. For over 30 years, McNally has also been an authorized historian and biographer of the Grateful Dead.

McNally’s most recent book, “Jerry on Jerry: The Unpublished Jerry Garcia Interviews,” was released in 2015. His acclaimed Grateful Dead biography, “A Long Strange Trip: The Inside History of the Grateful Dead,” was published in 2002, and McNally appeared in the similarly titled Amazon documentary that was released last year.

McNally will start answering questions on the Grateful Dead subreddit page at 9pm ET/6pm CT today. However, readers have the opportunity to post their questions throughout most of the day, and many have already done so.

[Photo: Reddit]