The first stage: you can buy a very basic and simple training textbook, not a sample tutorial, nor a very thick and comprehensive tutorial. Through this simple book, you can quickly understand the usage of software menus and tools.

The second stage: after you are familiar with the software, buy an example tutorial. If you want to bring a CD, follow the steps in the book. If not, you can open the CD or compare it with the CD file.

Remember: don't pursue a big, complete and thick book. Most of the functions in it are useless, incomprehensible and a waste of time. What is really used in practical work is the most basic function.

PS is bitmap processing software, which must be learned, and no other software can replace it.

You can learn one of CDR and AI as needed. When you learn one, the other is easy.

There are many video tutorials on the Internet, including Netease, Silicon Valley Power and Pacific Online, but not many can be downloaded.

Personally, watching video learning is not recommended. I think it is a waste of time. It's faster to read a book by yourself.