Mike Silverton, author of Anvil on a Shoestring , wields surgical instruments of Dadaist precision in this dazzling new sequence of 169 three-line poems in a form he calls Trios : “irreversible tercets in lines of diminishing length.” In Silverton’s work, poetry approaches the idyllic condition and ineffable significance of the autocannibalism of reason reaches its highest, most musical pitch, and absurdity plays musical chairs with the sublime.