Can I write together (official script+running script+regular script+cursive script)? If possible, what is this book called?

No, official script is divided into four fonts, each with its own characteristics. These four fonts can't be combined, but they are all based on square fonts, stroke by stroke. Regular script is mostly long, not very Lian Bi, and each stroke is inclined upwards, with distinctive corners. Running script is very smooth. The cursive script can hardly recognize what it is.