From Poetry Foundation:

Poetry Bestsellers
this week/last week, title, weeks on chart

1/1 The Trouble with Poetry and Other Poems (paperback) by Billy Collins (Random House) 3
2/2 Thirst by Mary Oliver (Beacon Press) 30
3/4 Sailing Alone Around the Room: New and Selected Poems by Billy Collins (Random House Trade Paperbacks) 60
4/-- New and Selected Poems, Volume Two (paperback) (Beacon Press) 1
5/19 Acolytes: Poems by Nikki Giovanni (William Morrow) 9
6/5 New and Selected Poems: Volume One by Mary Oliver (Beacon Press) 62
7/-- The Scarlet Ibis by Susan Hahn (Northwestern University Press) 1
8/13 The Collected Poetry of Nikki Giovanni: 1968-1998 by Nikki Giovanni (Harper Perennial Modern Classics) 9
9/11 Refusing Heaven by Jack Gilbert (Knopf) 2
10/-- American Spikenard by Sarah Vap (University of Iowa Press) 1
11/3 Delights and Shadows by Ted Kooser (Copper Canyon Press) 61
12/8 Why I Wake Early by Mary Oliver (Beacon Press) 61
13/-- Dummy Fire by Sarah Vap (Saturnalia Books) 2
14/-- Glean by Joshua Kryah (Nightboat Books) 3
15/7 Averno by Louise Glück (Farrar, Straus and Giroux) 7
16/14 Ariel: The Restored Edition by Sylvia Plath (Harper Perennial) 60
17/-- The Collected Poetry of Nikki Giovanni: 1968-1998 (hardcover) by Nikki Giovanni (William Morrow) 1
17/-- Blue Hour: Poems by Carolyn Forché (Harper Perennial) 2
18/21 New and Selected Poems: Volume Two by Mary Oliver (Beacon Press) 60
19/23 Nine Horses: Poems by Billy Collins (Random House) 61
19/18 Here, Bullet by Brian Turner (Alice James Books) 37
20/10 Blue Iris: Poems and Essays by Mary Oliver (Beacon Press) 27
20/-- Edgar Allan Poe & The Juke-Box: Uncollected Poems, Drafts, and Fragments by Elizabeth Bishop (Farrar, Straus and Giroux) 2
21/-- The Invention of the Kaleidoscope by Paisley Rekdal (University of Pittsburgh Press) 1
22/-- Given: Poems by Wendell Berry (Shoemaker & Hoard) 45
22/28 After by Jane Hirshfield (Harper Perennial) 5
23/9 A Worldly Country by John Ashbery (Ecco /HarperCollins) 7
24/-- Only the Senses Sleep by Wayne Miller (New Issues Poetry & Prose) 3
25/-- The Animal Gospels by Brian Barker (Tupelo Press) 1
26/-- Quilting the Black-Eyed Pea: Poems and Not Quite Poems by Nikki Giovanni (William Morrow) 2
26/-- Owls and Other Fantasies: Poems and Essays by Mary Oliver (Beacon Press) 52
26/-- Echolalia by Deborah Bernhardt (Four Way Books) 1
27/-- Collected Poems 1947-1997 by Allen Ginsberg (HarperCollins) 23
27/17 Slouching Toward Nirvana: New Poems by Charles Bukowski (Ecco) 60
28/27 The Second Child by Deborah Garrison (Random House) 8
29/-- The Apple That Astonished Paris by Billy Collins (University of Arkansas Press) 39
30/-- The Flash of Lightning Behind the Mountain: New Poems by Charles Bukowski (Ecco) 11