Camp Half-Blood chronicles

Heroes of Olympus Series:

Trails of Apollo Series:

Magnus Chase Series:

Camp Half-Blood Chronicles is a media franchise created by author Rick Riordan, encompassing three five-part novel series, three short-story collections, three crossover short stories, two myth anthology books, a stand-alone short story, an essay collection, a guide, four graphic novels, two films, a video game, a musical, and other media. It is known to take place in the same fictional universe as two of Riordan's other series, The Kane Chronicles and Magnus Chase and the Gods of Asgard.

Percy Jackson & the Olympians is a pentalogy of adventure and fiction books written by Rick Riordan. Set in the United States, the books are predominantly based on Greek mythology and deal with a demigod, Percy Jackson, and his quest to stop the rise of the Titan lord Kronos. All five books are seen from Percy's witty and sardonic point of view. The series tackles themes like coming of age, love and teenage angst.

More than 20 million copies of the books have been sold in more than 10 countries.

As of August 14, 2015, the series has been on the New York Times best seller list for children's book series for 369 weeks.

The Lightning Thief is the first book in the Percy Jackson and the Olympians series. It features Percy Jackson, Annabeth Chase, and Grover Underwood during their travels to the Underworld to try to recover Zeus' stolen master bolt. It was released on July 1, 2005.