Jimmy Page in 1973 (Creative Commons photo)
"After The Beatles, Sergeant Pepper's Lonely Hearts Club Band album came out, Dr. Timothy Leary declared it the ultimate document to communicate his message, the message of self-directed, personal freedom of consciousness to grow and expand as it will. Led Zeppelin plays that role for the maps and techniques of consciousness expansion presented by Aleister Crowley, i.e. his system of magick called Thelema. Speaking from experience, one way to get Thelema deeply imprinted into your DNA and engrained into your body of habits is to listen to a lot of Zeppelin's music."
Related: Oz Fritz on the Rolling Stone list of the greatest guitarists of all time. The magazine put Jimmy Page at No. 3, but Oz would have put him at No. 2 (below Jimi Hendrix, of course.) (The Rolling Stone list is here.)
Here is a list by Dan Peeke, at Beginner Guitar HQ, of the "100 Best Guitar Albums of All Time." But I note with disapproval the omission of the Rolling Stones, the Allman Brothers and Cream.