Well, there are quite a lot of people. It's usually quite a lot. There are many holidays on weekends. Only the fourth floor has a small place to sit and read. But there are usually many people here. Many people simply find a corner and sit on the floor. Not bad either.
In addition, books can go to other floors. As long as you don't leave the gate and take it into the toilet, you can also take the unsettled books. So you can take the books on floors 1, 2 and 3 to the fourth floor to read.
Ps: The basement is full of original books in foreign languages.