| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1990 | 978-0-9624891-0-5 | Mal Warwick | Revolution in the Mailbox: How Direct Mail Fundraising Is Changing the Face of American Society, and How Your Organization Can Benefit |
| 1993 | 978-0-9624891-2-9 | Mal Warwick ยท Deborah Block | 999 Tips, Trends, and Guidelines for Successful Direct Mail and Telephone Fundraising |
| 1995 | 978-0-9624891-5-0 | Colin Wheildon | Type & Layout: How Typography and Design Can Get Your Message Across-Or Get in the Way |