Pena lists his poems in the index according to Mayan hieroglyphics. The letters of the words of the poems are presented in varied colors and the shapes reference the calligrams of Apollinaire. A page with musical notation depicts words in different size typefaces & spacing akin to Mallarme's Un Coup de Des. These points were raised in a review of this book by Rodolfo Alonso that accompanies it. Finally, the box for the book contained paper to make it usable for an H-P computer driven printer.This book might have been composed with a typewriter. -- Source of annotation: Marvin or Ruth Sackner.