These books were each one of the major “It” books of their periods—1974 and 1992 respectively. Nearly every newspaper, magazine, talk show, etc., covered them, and they were so influential that they became part of the Zeitgeist, and variations on the titles became part of the vernacular of the times.
So, if you want to re-read, are having a bout of nostalgia, doing cultural research, or have been procrastinating for the last few decades, here’s you big chance. $2.99 each at Amazon.
Zen and the Art of Motorcycle Maintenance (An Inquiry into Values), by Robert M. Pirsig (1974) (dropped from $7.99)
Men Are From Mars, Women Are From Venus, by John Gray (1992) (dropped from $10.99)