Mea culpa, for getting off track. To make up for it, some research any prospective author should do for any press they're considering. Here are the Amazon rankings (current for this date stamp) for every HHP book I could easily find on Amazon. There are a couple of decent sellers, and a lot with what I suspect are mid double-digit sales or lower.
This isn't bad for a press with a strong regional focus, and for authors who simply want their work published by someone passionate about that focus. Many of these books do have scholarly acclaim. But they don't appear to have big sales.
Blowing Carbon 3,665,211
Albert's Happy Thanksgiving 7,479,760
The Baron Decision 2,956,291
Bigfoot Confidential (new) 925,119
The Bounty Man and Doe 2,835,788
Cuivre River Anthology Volume III 8,386,008
Cuivre River Anthology Volume I 5,400,487
Cuivre River anthology V 7,709,920
Cuivre River Anthology IV 6,512,413
The Devil's Hoofprints 703,888
Echoes of the Ozarks (AWOC edtion with same editor) 6,440,454
Echoes of the Ozarks (AWOC edition with same editor) anthology III 4,983,925
Echoes of the Ozarks (HHP version) 6,993,129
From Trash to Treasure 4,559,960
Geese to a Poor Market 886,030
G-Eye 3,496,201
God's Three Step Plan 1,852,673
The Last Dark Elf 4,516,198
Life on the Half Shelly 5,797,847
The Sad Blue Frog 4,006,698
Mysteries of the Ozarks III 3,467,910
Mysteries of the Ozarks V 5,695,013
The Neighborhood 2,607,298
Pea Brain and Wheelchair Willie 4,875,988
The Prophetess One: At Risk 2,725,629
Queen of the Last Frontier 1,581,483
Soldiers from the Mist 321,006
SpellBinder 275,321
Strengthen Your Non Fiction Writing 7,825,494
Tanka Moments 8,661,511
This, That and Sometimes the Other 4,806,150
Voices 5,765,408
Voices II no sales on Amazon
Why Not? and the Perfect Murder 1,307,804
Writing the West 2,742,812
Writing With a Mentor 6,944,745
The Yesteryear Tales 2,857,658