Jimidovich has a large quantity, and some difficult problems are good, but there are too many basic problems. If you want to lay a good foundation and train in an all-round way, do it systematically three times.
If you want to be quick and don't have enough perseverance, don't choose Jimidovich as an exercise.
His shortcoming is that the number of questions is large, and there are several simple questions, but there are also many questions.
It is suggested to buy a set of Shandong Science and Technology Publishing House, which can be used as an inscription and has collection value ~ ~
I haven't "personally experienced" another book, so I won't comment.
Does it help you?