| year of publication | ISBN | author(s) | title |
|---|
| 2011 | 978-1-887424-00-4 | Vance Jack/ Fabian Stephen | The Laughing Magician |
| 1995 | 978-1-887424-01-1 | Cathy Burnett · Arnie Fenner · Jim Loehr | Spectrum 2: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| '' | 978-1-887424-02-8 | Cathy Burnett | Spectrum 2: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| '' | 978-1-887424-03-5 | Thom Hartmann | ADD Success Stories: A Guide to Fulfillment for Families with Attention Deficit Disorder |
| '' | 978-1-887424-04-2 | Thom Hartmann | ADD Success Stories: A Guide to Fulfillment for Families with Attention Deficit Disorder |
| '' | 978-1-887424-05-9 | Sari Solden | Women with Attention Deficit Disorder: Embracing Disorganization at Home and in the Workplace |
| 1996 | 978-1-887424-08-0 | Thom Hartmann · Janie Bowman | Think Fast: The ADD Experience |
| 1996 | 978-1-887424-09-7 | Cathy Burnett · Arnie Fenner · Jim Loehr | Spectrum 3: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| '' | 978-1-887424-10-3 | '' | Spectrum III: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| '' | 978-1-887424-12-7 | Thom Hartmann | Beyond ADD: Hunting for Reasons in the Past and Present |
| 1997 | 978-1-887424-14-1 | Thom Hartmann · Edward M. Hallowell · Michael Popkin | Attention Deficit Disorder: A Different Perception |
| 1996 | 978-1-887424-19-6 | George T. Lynn | Survival Strategies for Parenting Your ADD Child: Dealing with Obsessions, Compulsions, Depression, Explosive Behavior, and Rage |
| 1997 | 978-1-887424-22-6 | Robert Silverberg | Reflections and Refractions: Thoughts on Science-Fiction, Science, and Other Matters |
| 2010 | 978-1-887424-26-4 | Philip K. Dick | The Selected Letters of Philip K. Dick, 1980-82 (Dick's Letters) |
| 1997 | 978-1-887424-28-8 | Arnie Fenner · Cathy Fenner | Spectrum 4: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| '' | 978-1-887424-30-1 | Stanley Wiater | Dark Thoughts: On Writing: Advice and Commentary from Fifty Masters of Fear and Suspense |
| 1998 | 978-1-887424-33-2 | Katherine Kurtz · Robert Reginald | Codex Derynianus: Being a Comprehensive Guide to the Peoples, Places, and Things of the Derynye and the Human Worlds of the XI Kingdoms |
| '' | 978-1-887424-37-0 | Thom Hartmann | Healing ADD: Simple Exercises That Will Change Your Daily Life |
| 1998 | 978-1-887424-38-7 | Boland | I Got Pregnant, You Can Too!: Secrets of Healing Infertility |
| '' | 978-1-887424-41-7 | Frank Frazetta | Icon: A Retrospective by the Grand Master of Fantastic Art |
| '' | 978-1-887424-43-1 | Cathy Fenner · Arnie Fenner | Spectrum 5: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| '' | 978-1-887424-44-8 | '' | Spectrum 5 the Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| 2003 | 978-1-887424-45-5 | Arnie Fenner · Cathy Fenner · Lee Stuart | Spectrum 1: The Best in Contemporary Fantastic Art (No. 1) |
| 1999 | 978-1-887424-46-2 | Cathy Fenner · Arnie Fenner | Spectrum 6: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| '' | 978-1-887424-47-9 | Arnie Fenner | Spectrum 6: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| 1999 | 978-1-887424-49-3 | Arnie Fenner · Cathy Fenner | Legacy: Selected Paintings and Drawings by the Grand Master of Fantastic Art, Frank Frazetta |
| 2000 | 978-1-887424-52-3 | Thom Hartmann | Thom Hartmann's Complete Guide to ADHD: Help for Your Family at Home, School and Work |
| '' | 978-1-887424-54-7 | Arnie Fenner · Cathy Fenner | Spectrum 7: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| '' | 978-1-887424-55-4 | Cathy Fenner · Arnie Fenner | Spectrum 7: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) (No. 7) |
| '' | 978-1-887424-56-1 | Arnie Fenner · Cathy Fenner | Tapestry: The Paintings of Robert McGinnis |
| 2002 | 978-1-887424-57-8 | '' | The Art of Jeffrey Jones |
| 2001 | 978-1-887424-60-8 | Cathy Fenner · Arnie Fenner | Spectrum 8: The Best in Contemporary Fantastic Art |
| '' | 978-1-887424-61-5 | '' | Spectrum 8: The Best in Contemporary Fantastic Art |
| 2001 | 978-1-887424-62-2 | Arnie Fenner · Cathy Fenner | Testament: A Celebration of the Life & Art of Frank Frazetta |
| 2002 | 978-1-887424-64-6 | Arnie Fenner · Cathy Fenner | The Art of Jeffrey Jones: Slipcased |
| '' | 978-1-887424-65-3 | '' | Spectrum 9: The Best in Contemporary Fantastic Art |
| '' | 978-1-887424-66-0 | '' | Spectrum 9: The Best in Contemporary Fantastic Art |
| 2003 | 978-1-887424-71-4 | Frank Frazetta · Cathy Fenner · Arnie Fenner | Icon: A Retrospective by the Grand Master of Fantastic Art |
| '' | 978-1-887424-72-1 | Arnie Fenner · Cathy Fenner | Spectrum 10: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) (No. 10) |
| '' | 978-1-887424-73-8 | Cathy Fenner · Arnie Fenner | Spectrum 10: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| 2003 | 978-1-887424-74-5 | Arnie Fenner | The Best of Gahan Wilson |
| 2005 | 978-1-887424-79-0 | Ilene Meyer | Ilene Meyer: Paintings, Drawings, Perceptions (Fantasy Art) |
| 2004 | 978-1-887424-81-3 | Cathy Fenner · Arnie Fenner | Spectrum 11: The Eleventh Annual Collection of the Best in Contemporary Fantastic Art |
| '' | 978-1-887424-82-0 | '' | Spectrum 11: The Best In Contemporary Fantastic Art |
| 2005 | 978-1-887424-83-7 | '' | The Art of B. Kliban: A Retrospective |
| 2004 | 978-1-887424-85-1 | Cathy Fenner | Drawings and Watercolors by Frank Frazetta |
| '' | 978-1-887424-87-5 | Cathy Fenner · Arnie Fenner · Gahan Wilson | The Best of Gahan Wilson |
| '' | 978-1-887424-89-9 | Joseph Cavanaugh | Who Am I, Really? How Our Wounds Can Lead to Healing |
| 978-1-887424-90-5 | War of the Worlds: A Modern Version of the Classic Novel (Novelisation) |
| 2005 | 978-1-887424-91-2 | Edgar Wallace · Merian C. Cooper · Delos W. Lovelace | King Kong |
| 2006 | 978-1-887424-92-9 | Robert Reginald · R. Reginald | War of the Worlds II: Operation Crimson Storm |
| 2005 | 978-1-887424-94-3 | Cathy Fenner · Arnie Fenner | Spectrum 12: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| 2005 | 978-1-887424-95-0 | Cathy Fenner · Arnie Fenner | Spectrum 12: The Best in Contemporary Fantastic Art (SPECTRUM (UNDERWOOD BOOKS)) |
| '' | 978-1-887424-96-7 | Katherine Kurtz · Robert Reginald | Codex Derynianus |
| '' | 978-1-887424-97-4 | Sari Solden | Women with Attention Deficit Disorder: Embrace Your Differences and Transform Your Life |
| 2014 | 978-1-887424-98-1 | '' | Women with Attention Deficit Disorder: Spanish-Language Edition |
| 2005 | 978-1-887424-99-8 | Bertold Ulsamer | The Healing Power of the Past: A New Approach to Healing Family Wounds |