I have encountered this many times, unfortunately, there is nothing you can do about it. Sometimes a writer just wants to get their point across and winds up rambling.
Other times, it is just their style.
I do my best not to be a rambler and think that it is a good general rule to follow. Picking up a book that has entire chapters of nothing but description can be quite daunting, kind of like sitting in the June heat during a three-hour wedding.
When I find myself rambling, I often switch to having the characters describe through dialogue, what is going on around them. It is not easy but can be quite rewarding.
As I have said before, I am not an editor or publisher, only an author. But I would like to share what I have learned thus far, with you. Rambling-a big no-no.