Published in 1994, Crystallography was a gem of a book, an instant hit that was nominated for the Gerald Lampert Award. It has been unavailable for an ice age, and Coach House Books is proud to bring it back.

''Crystallography'' means the study of crystals, but also, taken literally, ''lucid writing.'' The book exists in the intersection of poetry and science, exploring the relationship between language and crystals - looking at language as a crystal, a space in which the chaos of individual parts align to expose a perfect formation of structure.

As Bök himself says, ''a word is a bit of crystal in formation,'' suggesting there is a space in which words, like crystals, can resonate pure form.

Lucid, sparkling, a diamond of a book: Crystallography is a crystal-clear approach to the science of poetry from the author of Eunoia.