3 Titles: Eragon, Eldest, and Brisingr
 
Eragon: This is the first book in the series, published in 2002 when Paolini was just nineteen years old. It introduces the protagonist, Eragon, a young farm boy who discovers a dragon egg that hatches into a dragon named Saphira. As he learns about his newfound abilities as a Dragon Rider, Eragon becomes embroiled in a battle against the evil king Galbatorix and joins the resistance against his tyrannical rule.
 
Eldest: Published in 2005, Eldest continues Eragon's journey as he travels to the elven city of Ellesméra to train under the guidance of the wise and ancient elves. Meanwhile, his cousin Roran leads a rebellion against the Empire, and Eragon must confront challenges that test his abilities and courage. The book expands the world of Alagaësia and delves deeper into the politics, magic, and history of the land.
 
Brisingr: Published in 2008, Brisingr picks up where Eldest left off, with Eragon and Saphira continuing their quest to overthrow Galbatorix. Eragon faces moral dilemmas, battles with dangerous enemies, and discovers more about his own identity and the legacy of the Dragon Riders. The book explores themes of loyalty, sacrifice, and the consequences of wielding great power.