Uh-huh. . I have never used the three books mentioned by Liz. .

I bought a textbook and a copy of "System Integration Project Management Engineer Examination Test Eye Analysis and Sample Paper Analysis" from the Machinery Industry Press. It is a book based on the exam syllabus and past exam questions. You sort out some knowledge points, and then there are examples of how questions have been asked over the years, which I think is pretty good.

Actually, I read a lot of books when I first bought them, but personally I feel that any book you buy is almost the same. The most important thing is that you have to have the patience to read the book thoroughly. If you read the book several times, there will definitely be no problem.

If you are really worried, you can buy a special tutoring course or something.

Hope this helps~