This is the 14302nd most frequent Turkish word.
okunmasının
"Okunmasının" means "its being read" or "the act of it being read."
The word 'okunmasının' in this sentence refers to the act of reading books, forming a genitive-possessive phrase indicating the reading's benefits.
Kitapların okunmasının faydalı olduğunu düşünüyorum.
I think that reading books is beneficial.
Here, 'okunmasının' functions as a genitive-possessive structure linking the act of reading the rules to the resulting better understanding.
Kuralların okunmasının sonucunda daha iyi anlaşılabileceği söyleniyor.
It is said that after reading the rules, they can be understood better.
In this case, 'okunmasının' relates the act of reading the article to the concept of requiring time, forming a clause expressing a general reality.