| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Penny Stocks: The Next American Gold Rush | 978-0-9674758-0-6 (0-9674758-0-5) | 1999 |
| The Little Black Book of Microcap Investing: Beat the Market with NASDAQ/AMEX Microcap Stocks, OTCBB Penny Stocks, and Pink Sheet Stocks | 978-0-9674758-2-0 (0-9674758-2-1) | 2007 |
D,. H.. · Dan Haladej · Dan Holdsworth · Dan Holtstam · Dean Holdsworth · Deanna Holtzman · Diana Holdsworth · Diana Holtzberg · Don Holtgrieve