| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2003 | 978-1-930841-18-5 | Angelo Di Antonio | Opera Journeys Crossword Puzzles, Volume I |
| 2000 | 978-1-930841-19-2 | Burton D. Fisher · George, Gershwin · 1898-1937 | Porgy and Bess/Opera Journeys Mini Guide Series |
| '' | 978-1-930841-20-8 | Burton D. Fisher · George Frideric, Handel · 1685-1759 | Julius Caesar/Opera Journeys Mini Guide Series |
| 2001 | 978-1-930841-93-2 | Burton D. Fisher | The Magic Flute (Opera Journeys Libretto Series) |