- Midnight on the moon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Summer of the sea serpent, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Heroes for all times :, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Magic tree house, Mary Pope Osborne, Books 1-8
- Dragon of the red dawn, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Magic tree house, Mary Pope Osborne, Books 48 & 49
- Magic tree house, Mary Pope Osborne, Books 46 &47
- Thanksgiving ;, Thanksgiving on Thursday ; Pilgrims : a nonfiction companion to Thanksgiving on Thursday, Mary Pope Osborne ; Natalie Pope Boyce
- Leonardo da Vinci :, a nonfiction companion to Monday with a mad genius, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Ancient Rome and Pompeii :, a nonfiction companion to Vacation under the volcano, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Danger in the darkest hour, Mary Pope Osborne
- Moonlight on the magic flute, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Polar bears past bedtime, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Season of the sandstorms, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Vikings, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Delfines al amanecer, Mary Pope Osborne ; ilustrado por Sal Murdocca
- Magic tree house, Mary Pope Osborne, Books 40 & 41
- Viking ships at sunrise, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Dog heroes, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Magic tree house Merlin missions 1-4, Mary Pope Osborne
- Abraham Lincoln, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Snakes and other reptiles :, a nonfiction companion to A crazy day with cobras, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Winter of the ice wizard, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Magic tree house survival guide, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- A crazy day with cobras, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Magic tree house, Mary Pope Osborne, Books 9-12
- A big day for baseball, by Mary Pope Osborne ; jacket illustration by Sal Murdocca ; interior illustrations by AG Ford
- High tide in Hawaii, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series
- Magic tree house, Mary Pope Osborne, Books 25-29
- Magic tree house, Mary Pope Osborne, Books 17-24
- Magic tree house, Mary Pope Osborne, Books 50 & 51
- A ghost tale for Christmas time, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Tigers at twilight, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Danger in the darkest hour, Mary Pope Osborne
- Christmas in Camelot, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Pilgrims, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Piratas después del mediodía, Mary Pope Osborne ; ilustrado por Sal Murdocca ; traducido por Marcela Brovelli
- Civil War on Sunday, [Mary Pope Osborne ; illustrated by Sal Murdocca]
- Tonight on the Titanic, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Dark day in the deep sea, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Ghosts :, a nonfiction companion to A good night for ghosts, by Natalie Pope Boyce ; illustrated by Sal Murdocca
- American revolution :, a nonfiction companion to Revolutionary War on Wednesday, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- El caballero del alba, Mary Pope Osborne ; ilustrado por Sal Murdocca ; traducido por Marcela Brovelli
- Pirates :, Pirates past noon ; Pirates : a nonfiction companion to Pirates past noon, by Mary Pope Osborne ; illustrated by Sal Murdocca ; Will Osborne
- Hour of the Olympics, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Magic tree house, Mary Pope Osborne, Books 5-8
- Carnival at candlelight, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Dinosaurs before dark, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Leprechauns and Irish folklore, by Mary Pope Osborne and Natalie Pope Boyce