If you haven't already seen it, I highly recommend watching the "War Stories" video on the making of Prince of Persia: https://www.youtube.com/watch?v=sw0VfmXKq54
On a related note, I also highly recommend the "War Stories" video for the making of Crash Bandicoot: https://www.youtube.com/watch?v=izxXGuVL21o
That, and more, is available from Jordan Mechner’s site https://www.jordanmechner.com.
Prince of Persia info at https://www.jordanmechner.com/en/library/#pop
Yes, specifically buying options for the book are on this page: (recommended) https://www.jordanmechner.com/en/books/journals
I came here to recommend the same thing. The entire War Stories series was magnificent.