I stumbled upon 'Indigo' while browsing for new reads and found it on Kindle Unlimited. Amazon has both the ebook and paperback versions if you prefer physical copies. The ebook is surprisingly affordable, often discounted during sales. For those who enjoy subscription services, Scribd also carries it with their monthly plan. Libraries might have digital copies through OverDrive or Libby – I borrowed it that way first before deciding to buy. The author's official website sometimes offers signed editions, which is a nice touch for collectors. If you're into audiobooks, Audible has a well-narrated version that really brings the story to life.