I just have a regular Amazon Prime account. Every month, Prime users are allowed 2 pre-releases from a short list they email around the 1-3 of the month. This was on there a few months back. I can't even remember when! I didn't know about this service for years because I often don't read the promotional emails, but once I did and was pleasantly surprised. The books are all available one month before their general release, but rarely have I found time to read them before they come out because I am always reading so many things!