Hi Cheanlenu2,
Those are all the regions so far. In the remake roadmap there are 2 more areas to come, the Deeper Forest and the Waterfall.
Regarding the book, it gives you access to the spells when interceptions occur, so you have to make a perfect interception to gain a counter point to be able to use the spells.
Check the post for the v0.75/v0.76 combat rework to see which actions intercept which.