The Percy Jackson and the Olympians series (The Lightning Thief, The Sea of Monsters, The Titans Curse, The Battle of the Labyrinth, and the Last Olympian), The Heroes of Olympus(The Lost Hero, The Son of Neptune[coming out October 2011]),The Kane Chronicles (The Red Pyramid, The Throne of Fire, Thrid Book coming in Spring 2012), 39 Clues: Maze of Bones.
Well it depends what you mean by new but he is the author of the Percy Jackson and the Olympians series(The Lightning Thief, The Sea of Monsters, The Titan's Curse, The Battle of the Labyrinth, The Last Olympian) and he wrote the first 39 clues book. He is going to publish the first book in The Kane Chroniclesand its going to be called The Red Pyramid on May 4th, 2010. That series is based on Egyptian mythology. Also, he is going to write another Camp Half-Blood series that should be out fall of 2010. For more go to this link, its were I got my info.
http://www.rickriordan.com/index.php/contact/
The Percy Jackson and the Olympians series (The Lightning Thief, The Sea of Monsters, The Titans Curse, The Battle of the Labyrinth, and the Last Olympian), The Heroes of Olympus(The Lost Hero, The Son of Neptune[coming out October 2011]),The Kane Chronicles (The Red Pyramid, The Throne of Fire, Thrid Book coming in Spring 2012), 39 Clues: Maze of Bones.
The series is called "Percy Jackson & the Olympians" and it follows the adventures of Percy Jackson, a demigod and son of Poseidon.
PJO HoO Magnus Chase Kane Chronicles 39 Clues ToA short stories
Becky
Rick Riordan's wife's last name is Riordan. Her full name is Becky Riordan.
the new series is called the Kane chronicals
Heroes of Olympus-Rick Riordan
Rick Riordan's real name is Richard Russell Riordan Jr.
Battle of the Labryinth
Haley
Rick Riordan's mother's name is Lyn Belisle.
Rick Riordan was born Richard Russell Riordan Jr. on June 5, 1964.
Rick Riordan pronouces his name RI-er-den.
Rick Riordan's nickname is Uncle Rick, given by his fans for his role as a beloved author of young adult fiction, particularly known for his Percy Jackson series.
There is no publicly known connection between Rick Riordan, author of the Percy Jackson series, and Timothy and Michael Riordan of Riordan mansion State Park in Arizona. The Riordan name is not uncommon, so any familial relationship between them would need to be confirmed through official channels or by the individuals themselves.