- Osborne, Mary Pope, Magic tree house series, #36
- Ancient Greece and the Olympics, a nonfiction companion to Hour of the Olympics, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- A big day for baseball, by Mary Pope Osborne ; jacket illustration by Sal Murdocca ; interior illustrations by Ag Ford
- Soccer, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #10
- World War II, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- To the future, Ben Franklin!, by Mary Pope Osborne ; illustrated by AG Ford
- Leonardo da Vinci, a nonfiction companion to Monday with a mad genius, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Night of the ninth dragon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- A ghost tale for Christmas time, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #08
- Benjamin Franklin, to the future, Ben Franklin!, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Isidre Monés
- Narwhals and other whales, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Isidre Monés
- Warriors in winter, by Mary Pope Osborne ; illustrated by AG Ford
- The land of the dead, by Mary Pope Osborne ; with artwork by Troy Howell
- Osborne, Mary Pope, Magic tree house, 26
- Osborne, Mary Pope, Magic tree house series, #37
- Night of the Ninjas, the graphic novel, adapted by Jenny Laird ; with art by Kelly & Nicole Matthews
- Leprechauns and Irish folklore, a nonfiction companion to Leprechaun in late winter, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Standing in the light, the captive diary of Catherine Carey Logan, by Mary Pope Osborne
- A perfect time for pandas, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Midnight on the moon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Leprechaun in late winter, by Mary Pope Osborne ; 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
- A crazy day with cobras, by Mary Pope Osborne ; illustrated by Sal Murdocca
- The gray-eyed goddess, by Mary Pope Osborne ; with artwork by Troy Howell
- Earthquake in the early morning, by Mary Pope Osborne ; illustrated by Sal Murdocca
- The knight at dawn, the graphic novel, adapted by Jenny Laird ; with art by Kelly & Nichole Williams
- Osborne, Mary Pope, Magic tree house series, #26
- Sharks and other predators, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Osborne, Mary Pope, Magic tree house, #46
- The one-eyed giant, by Mary Pope Osborne ; with art work by Troy Howell
- Balto of the Blue Dawn, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Winter of the ice wizard, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Sirens and sea monsters, by Mary Pope Osborne ; with artwork by Troy Howell
- Dogs in the dead of night, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Camp time in California, by Mary Pope Osborne ; illustrations by AG Ford
- Dog heroes, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Baseball, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Osborne, Mary Pope, Magic tree house
- Osborne, Mary Pope, Magic tree house series, #39
- Good morning, gorillas, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Rhinos at recess, by Mary Pope Osborne ; illustrated by AG Ford
- Lions at lunchtime, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Ghost town at sundown, by Mary Pope Osborne ; illustrated by Sal Murdocca
- The final battle, Mary Pope Osborne
- Mummies in the morning, the graphic novel, adapted by Jenny Laird ; with art by Kelly & Nichole Matthews
- Sabertooths and the Ice Age, a nonfiction companion to Sunset of the sabertooth, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Late lunch with llamas, by Mary Pope Osborne ; illustrated by AG Ford
- Osborne, Mary Pope, Magic tree house series, 29