Man, I still get giddy thinking about listening to 'Percy Jackson' on a long drive — it’s like having a movie in my ears. If you want to buy the audiobooks, the most straightforward places are Audible (Amazon) and Apple Books. Audible often has full boxed set purchases or single-book purchases, and you can use credits or buy outright. Apple Books and Google Play sell individual audiobook files too, usually in formats that work across your Apple or Android devices. Kobo and
Audiobooks.com are solid alternatives if you prefer to keep everything outside the Amazon ecosystem.
If you care about supporting local bookstores, I love recommending Libro.fm — you buy the same commercial audiobooks there but the money supports an independent bookstore of your choice. For bargain hunters,
Chirp (the BookBub audiobook service) runs steeply discounted sales from time to time. And if you want access without buying, check your library: OverDrive/Libby and Hoopla let you borrow 'Percy Jackson' digitally if your library carries them, and that’s my go-to when I want to revisit a book without spending anything.
A couple of practical things I’ve learned: watch for publisher sales and watch region availability (some editions vary by country), and pay attention to formats and DRM if you care about device compatibility. Rick Riordan’s official site and Penguin Random House Audio list the official editions too, which is handy for tracking down boxed sets or special editions. Personally, I usually buy a series set during a sale and borrow recaps from the library so I can reread or re-listen without breaking the bank.