| title | ISBN-13 | year of publica-
tion | other author(s) |
|---|
| 801 Things You Should Know: From Greek Philosophy To Today's Technology, Theories, Events, Discoveries, Trends, And Movements That Matter | 978-1-4405-6571-7 | 2013 |
| Christopher Radko Ornaments: Value Guide 1986 Thru 2000 | 978-0-9779099-0-2 | 2007 |
| Christopher Radko Ornaments: Volume 2: Value Guide 2001 Thru 2006 | 978-0-9779099-1-9 | 2008 |
| Roget's Thesaurus of Words for Intellectuals: Synonyms, Antonyms, and Related Terms Every Smart Person Should Know How to Use | 978-1-4405-2898-9 | 2011 | Michelle Bevilacqua · Justin Cord Hayes |
| Roget's Thesaurus of Words for Writers: Over 2,300 Emotive, Evocative, Descriptive Synonyms, Antonyms, and Related Terms Every Writer Should Know | 978-1-4405-7311-8 | 2014 | Michelle Bevilacqua · Justin Cord Hayes · Robert W Bly |
| The Big Book of Words You Should Know: Over 3,000 Words Every Person Should be Able to Use | 978-1-60550-139-0 | 2009 |
| The Couple's Survival Workbook: What You Can Do To Reconnect With Your Partner and Make Your Marriage Work | 978-0-9638784-1-0 | 2011 | Douglas Stephens |
| The Couple's Survival Workbook: What You Can Do to Reconnect with Your Partner and Make Your Marriage Work | 978-1-57224-254-8 | 2001 | " |
| The Spiritual Work of Marriage | 978-0-203-88940-4 | 2008 |
| The Words You Should Know | 978-1-55850-018-1 | 1997 |