| Master Landscapist | 1990 | Don Rosa | ink | Story | 10 | Denmark | 107 |
| The Pied Piper of Duckburg | 1990 | Carl Barks | ink | Story | 3 | Miscellaneous | 42 |
| Duck Family Tree | 1990 | Carl Barks, (no one) | pencils, ink | Text story | <1 | Non-Disney and/or non-comics | 37 |
| Agli Amici di Der Hamburger Donaldist | 1990 | Giorgio Cavazzano | ink | Illustration | <1 | Italy | 20 |
| Untitled cover | 1990 | Carl Barks | ink | Cover | 1 | Miscellaneous | 18 |
| Lost Prospectors | 1990 | Carl Barks | ink | Illustration | <1 | Miscellaneous | 14 |
| Untitled illustration | 1990 | Romano Scarpa | ink | Illustration | <1 | Italy | 10 |
| Untitled illustration | 1990 | Carl Barks | ink | Illustration | 1 | Non-Disney and/or non-comics | 10 |
| Desert Prospectors | 1990 | Carl Barks | ink | Illustration | 1 | Miscellaneous | 9 |
| Untitled story | 1990 | Carl Barks | ink | Story | <1 | Miscellaneous | 9 |
| Interior Decorators | 1990 | Carl Barks | ink | Illustration | 15 | Miscellaneous | 7 |
| Filo Sganga - Jubal Cock | 1990 | Romano Scarpa | ink | Illustration | <1 | Italy | 7 |
| Untitled illustration | 1990 | Giovan Battista Carpi | ink | Illustration | <1 | Italy | 7 |
| An Embarrassment of Riches konseptskisse | 1990 | Carl Barks | ink | Illustration | 1 | Non-Disney and/or non-comics | 7 |
| Untitled cover | 1990 | Carl Barks | ink | Cover | 1 | Miscellaneous | 6 |
| Untitled cover | 1990 | Wilma van den Bosch | ink | Cover | 1 | Holland | 3 |
| Untitled illustration | 1990 | Daan Jippes | ink | Illustration | <1 | Another Rainbow (Gladstone) | 2 |
| Regen | 1990 | Wilma van den Bosch | ink | Text story | 1 | Holland | 2 |
| Winny Puh - Il palloncino dell'allegria | 1990 | | plot, script, pencils, ink | Story | 4 | Italy | 2 |
| Untitled story | 1990 | Romano Scarpa | ink | Story | <1 | Non-Disney and/or non-comics | 2 |
| Lions in the poppy patch | 1990 | Carl Barks, (no one) | pencils, ink | Article | <1 | Non-Disney and/or non-comics | 2 |
| The Triple Birth of Super Goof | 1990 | Joe Torcivia, (no one) | pencils, ink | Article | 1 | Non-Disney and/or non-comics | 2 |
| Untitled cover | 1990 | Carl Barks | ink | Cover | 1 | Miscellaneous | 1 |
| Pluto chioccia | 1990 | (no one) | plot, script, pencils, ink | Article | | Non-Disney and/or non-comics | 1 |
| Storie di animali | 1990 | (no one) | plot, script, pencils, ink | Article | | Non-Disney and/or non-comics | 1 |
| The Last of the Wine | 1990 | Geoffrey Blum, (no one) | pencils, ink | Article | 2 | Non-Disney and/or non-comics | 1 |
| The Greatest Inventor of Them All | 1990 | (no one) | pencils, ink | Text story | 1 | Non-Disney and/or non-comics | 1 |
| The Many Faces of Uncle Scrooge | 1990 | Giles Moran, (no one) | pencils, ink | Text story | 1 | Non-Disney and/or non-comics | 1 |
| Secrets Behind the Secrets | 1990 | David Seidman | ink | Text story | 1 | Non-Disney and/or non-comics | 1 |
| Greed, gold, and the Good Life | 1990 | Giles Moran, (no one) | pencils, ink | Article | 1 | Non-Disney and/or non-comics | 1 |
| Of Ducks and Other Animals | 1990 | Giles Moran, (no one) | pencils, ink | Article | 1 | Non-Disney and/or non-comics | 1 |