Cosmopolitan greetings Book

I remember this one especially because I'd probably read it back when I was a beat-obsessed lad but I'd forgotten it like you do.

But I remember this one because of the wonderful day when I'd quit my shit job (for the time being) to go to grad school and I had nothing to do but lay in the bright summer grass and talk to my dear friend Les, who was reading this at the time and really kinda digging it and who really got into reading it pretty much the way Allen would have had he been on the other line and since obviously we dig Ginsberg just fine and obviously we each have plenty of other, more worthy books under our respective belts it's still just sort of fun to cheerfully chuckle, guffaw and hum approvingly when you dust off a minor classic from an old favorite.