Young Adult novels
- The Magic Circle, 1993 Dutton Penguin, 1995 Puffin Books (Paperback)
- Zel, 1996 Dutton Penguin, 1998 Puffin Books (Paperback)
- Song of the Magdalene, 1996 Scholastic, 1998 (Paperback), 2004 Simon & Schuster (Paperback)
- Stones in Water, 1997, 1999 (Paperback) Dutton Penguin
- For the Love of Venice, 1998, 2000 (Paperback) Delacorte Press
- Sirena, 1998, 2000 (Paperback) Scholastic
- Spinners, 1999, 2001 (Paperback) Dutton Penguin
- Crazy Jack, 1999, 2001 (Paperback) Delacorte Press
- Beast, 2000, 2002 (Paperback) Simon & Schuster
- Daughter of Venice, 2002, 2003 (Paperback) Delacorte Press
- The Great God Pan, 2003, 2005 (Paperback) Delacorte Press
- Breath, 2003, 2005 (Paperback) Simon & Schuster
- North, 2004, 2005 (Paperback) Greenwillow
- Bound, 2004, 2006 Simon & Schuster
- The King of Mulberry Street, 2005, 2007 (Paperback) Delacorte Press
- Fire in the Hills, 2006, 2008 (Paperback) Dutton Press
- Hush: An Irish Princess' Tale, 2007, 2008 (Paperback) Simon & Schuster
- The Smile, 2008, 2009 (Paperback) Dutton Press
- Alligator Bayou, 2009, 2010 (Paperback) Random House
- The Wager, 2010, 2014 (Paperback) Henry Holt and Company
- Skin, 2013 Skyscape
- Storm, 2014 Simon & Schuster
- Hidden: An Irish Princess' Tale, 2014 Paula Wiseman Books
- Dark Shimmer, 2015 Random House
Elementary- and middle-school novels
- Soccer Shock, 1991 Dutton Penguin, 1993 Puffin Books (Paperback)
- The Prince of the Pond, 1992 Dutton Penguin, 1994 Puffin Books (Paperback)
- When the Water Closes over my Head, 1994 Dutton Penguin, 1996 Puffin Books (Paperback)
- Shark Shock, 1994 Dutton Penguin, 1997 Puffin Books (Paperback)
- The Bravest Thing, 1995 Dutton Penguin, 1997 Puffin Books (Paperback)
- Jimmy, the Pickpocket of the Palace, 1995 Dutton Penguin, 1997 Puffin Books (Paperback)
- On Guard, 1997 Dutton Penguin, 1999 Puffin Books (Paperback)
- Trouble on the Tracks, 1998 Scholastic
- Changing Tunes, 1998 Dutton Penguin, 2000 Puffin Books (Paperback)
- Shelley Shock, 2000 Dutton Penguin, 2002 Puffin Books (Paperback)
- Three Days, 2001 Dutton Penguin, 2003 Puffin Books (Paperback)
- Gracie, the Pixie of the Puddle, 2004 Dutton Penguin
- Sly the Sleuth and the Pet Mysteries, 2005 Dial Press, 2007 Scholastic (Paperback)
- Ugly, 2006, 2008 (Paperback) Hyperion Books
- Sly the Sleuth and the Sports Mysteries, 2006 Dial Press
- Sly the Sleuth and the Food Mysteries, 2007 Dial Press
- Mogo, the Third Warthog, 2008 Hyperion Books
- Sly the Sleuth and the Code Mysteries, 2009 Dial Press
- Lights On The Nile, 2011 HarperCollins
- Treasury of Greek Mythology: Classic Stories of Gods, Goddesses, Heroes & Monsters, 2011 National Geographic
- Treasury of Egyptian Mythology: Classic Stories of Gods, Goddesses, Monsters & Mortals, 2013 National Geographic
- Treasury of Norse Mythology: Stories Of Intrigue, Trickery, Love & Revenge, 2015 National Geographic
- Tales From the Arabian Nights: Stories of Adventure, Magic, Love, and Betrayal, 2016 National Geographic
- Treasury of Bible Stories, 2019 National Geographic
- Treasury of Magical Tales From Around the World, 2021 National Geographic
- Words to Make a Friend, 2021 Random House Studio
The Angelwings Series
Published by Simon & Schuster 1999-2001
- Friends Everywhere
- Little Creatures
- On Her Own
- One Leap Forward
- Give and Take
- No Fair!
- April Flowers
- Playing Games
- Lies and Lemons
- Running Away
- Know-It-All
- New Voices
- Left Out
- Happy Holidays
- Partners
- Hang In There
Picture books and early readers
- The Hero of Barletta, Illustrations by Dana Gustafson, Carolrhoda Books, 1988
- Albert, Illustrations by Jim LaMarche, Harcourt, 2001
- How Hungry are You?, Illustrations by Amy Walrod, Simon & Schuster, 2001
- Rocky, the Cat who Barks, Illustrations by Tamara Petrosino, Dutton Children's Books, 2002
- Flamingo Dream, Illustrated by Cathie Felstead, Greenwillow, 2002
- Hotel Jungle, Illustrations by Kenneth J. Spengler, Mondo Publishing 2004
- Pink Magic, Illustrations by Chad Cameron, Clarion Books, 2005
- Bobby the Bold, Illustrations by Ard Hoyt, Dial Books for Young Readers, 2006
- The Wishing Club: A Story About Fractions, Illustrations by Anna Currey, Henry Holt and Company, 2007
- Corkscrew Counts: A Story About Multiplication, Illustrations by Anna Currey, Henry Holt and Company, 2008
- Ready to Dream, Illustrations by Bronwyn Bancroft, Bloomsbury USA, 2009
- The Earth Shook: A Persian Tale Illustrations by Gabi Swiatkowska Hyperion Books, 2009
- Handy Stories to Read and Sign, Illustrations by Maureen Klusza, Gallaudet University Press, 2009
- Mama Miti: Wangari Maathai and the Trees of Kenya, Illustrations by Kadir Nelson, Simon & Schuster, 2010
- The Crossing, Illustrations by Jim Madsen, Simon & Schuster, 2011
- A Single Pearl, Illustrations by Jim LaMarche, Hyperion Books, 2013
- Hands & Hearts, Illustrations by Amy Bates, Abrams Books, 2014
- As Night Falls: Creatures That Go Wild After, Illustrations by Felicita Sala, Random House Studio, 2023
eBooks
- Hang In There, 2015
- Left Out, 2015
- Partners, 2015
- Happy Holidays, 2015
- Know-It-All, 2015
- No Fair!, 2015
- Playing Games, 2015
- April Flowers, 2015
- One Leap Forward, 2015
- Give And Take, 2015
- On Her Own, 2015
- Song Of The Magdalene, 2015
- Friends Everywhere, 2015
- Little Creatures, 2015
