This Grateful Dead poster is a fascinating, truly unique collectible, publicizing an academic lecture on connections between the Grateful Dead and scholars in academia delivered by the legendary Dennis McNally, official historian of the Grateful Dead and author of the classic study, Long Strange Trip: The Inside History of the Grateful Dead. The poster, measuring 17" x 11", features an iconic autographed inscription by McNally, There is no road, no simple highway... A truly rare contribution to any Grateful Dead collection.