The exercise book "Point Midpoint" of junior high school solid geometry published by Beijing Normal University is a good topic with moderate difficulty, neither too difficult nor too simple. It is better that each unit will have module summary and practice, and it can be trained in a targeted way, which is better and the corresponding unit test is also very good.

Each version will have a corresponding math workbook, and it is a matter of opinion which is better. Because everyone's preferences are different, their learning situation is also different, and the exercise books they adapt to are different.