| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1990 | 978-0-9625565-0-0 | Robert E. Horn | Mapping Hypertext: The Analysis, Organization, and Display of Knowledge for the Next Generation of On-Line Text and Graphics |
| 1992 | 978-0-9625565-1-7 | Robert E Horn | How high can it fly?: Examining the evidence on Information Mapping's method of high-performance communication |