Final Fantasy Origins Official Strategy Guide by Casey Loe, Laura M. Parkinson (2003, Paperback)

I bought this guide because I was having problems with Final Fantasy 1. When I picked it up, I was surprised with how much stuff I had missed so far in the game. Its extensive detail to certain elements of the game is amazing, considering it was developed by a third party. The only reason I give this a 4/5 is because it assumed I had these items, so I had to start over to use it fully. Also, some of the minor information was inaccurate. Other than that, I used it to successfully beat both games. It's very helpful and I would recommend buying it if you need help.