* The Lightning Thief (Book 1): This is the book that started it all, introducing Percy and the world of Greek mythology. It's action-packed and exciting, and many readers find it a great introduction to the series.
* The Sea of Monsters (Book 2): This book introduces several new characters and takes Percy on a thrilling adventure, diving into the underwater world. It's a great choice for those who love mythology and seafaring.
* The Titan's Curse (Book 3): This book introduces a new character, Annabeth's sister Thalia, and focuses on a quest to save her. It's a darker and more emotional book than the first two, but it's also incredibly exciting and action-packed.
* The Battle of the Labyrinth (Book 4): This book is a fast-paced, intricate adventure that delves deeper into the world of Greek mythology. It's a great choice for those who enjoy strategy and suspense.
* The Last Olympian (Book 5): This is the epic conclusion to the series, bringing together all of the main characters and themes. It's a thrilling and emotional ride, full of action and suspense.
Ultimately, the best Percy Jackson book for you is the one that you find most enjoyable. I recommend trying out a few different books to see which one you like best!