- Late lunch with llamas, Mary Pope Osborne
- Stage fright on a summer night, by Mary Pope Osborne ; illustrated by Sal Murdocca
- 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
- Christmas in Camelot, Mary Pope Osborne ; illustrated by Antonio Javier Caparo
- Afternoon on the Amazon, by Mary Pope Osborne ; illustrated by Sal Murdocca
- 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
- Osborne, Mary Pope, Magic tree house series, #03
- Dog heroes, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Magic tree house collection, books 1-8, Mary Pope Osborne
- Baseball, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Leprechauns and Irish folklore, a nonfiction companion to Leprechaun in late winter, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Pandas and other endangered species, by 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
- The Random House book of Bible stories, retold by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Michael Welply
- American revolution, a nonfiction companion to Revolutionary War on Wednesday, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Summer of the sea serpent, by Mary Pope Osborne ; illustrated by Sal Murdocca
- A crazy day with cobras, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #01
- Osborne, Mary Pope, Magic tree house series, #24
- Kate and the beanstalk, written by Mary Pope Osborne ; illustrated by Giselle Potter
- Rags and riches, kids in the time of Charles Dickens, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Dingoes at dinnertime, by Mary Pope Osborne ; illustrated by Sal Murdocca
- American tall tales, by Mary Pope Osborne ; wood engravings by Michael McCurdy
- Shadow of the shark, by Mary Pope Osborne ; illustrated by Sal Murdocca.
- Windy night with wild horses, by Mary Pope Osborne ; illustrated by AG Ford
- Llamas and the Andes, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Isidre Monés
- Hurry up, Houdini!, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Dragon of the red dawn, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Dark day in the deep sea, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Pilgrims, a nonfiction companion to Thanksgiving on Thursday, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Abraham Lincoln, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Hurricane heroes in Texas, by Mary Pope Osborne ; illustrations by AG Ford
- Time of the turtle king, by Mary Pope Osborne ; illustrated by AG Ford
- Osborne, Mary Pope, Magic tree house series
- Dragons and mythical creatures, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Carlo Molinari
- Dinosaurs before dark, Mary Pope Osborne ; adapted by Jenny Laird ; with art by Kelly & Nichole Matthews
- Warriors, a nonfiction companion to Magic tree house, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Isidre Monés
- Abe Lincoln at last!, Mary Pope Osborne ; illustrated by Sal Murdocca
- Magic tricks from the tree house, an activity companion to magic tree house #50: hurry up, Houdini!, Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- After the rain, by Mary Pope Osborne
- Sea monsters, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- High tide in Hawaii, by Mary Pope Osborne ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house series, #38
- Ninjas and samurai, a nonfiction companion to Magic tree house #5 : Night of the ninjas, by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca
- Osborne, Mary Pope, Magic tree house, 29