Often compared with Apollinaire as the first and liveliest avant-garde poet in his language, Vicente Huidobro was a one-man movement ("Creationism") in the modernist swirl of Paris and Barcelona between the two World Wars. His masterpiece was the 1931 book-length epic Altazor, a Machine Age paean to flight that sends its hero (Altazor, the "antipoet") hurtling through Einsteinian space at light speed. Perhaps the fastest-reading long poem of the century, and certainly the wildest, Altazor rushes through the universe in a lyrical babble of bird-languages, rose-languages, puns, neologisms, and...