The diagram below shows the plan of public library 20 years ago and how it looks now. Summarize the information by selecting and reporting main features, and make comparisons where relevant.

The maps illustrate how the inner area of the public library was altered over a 20-year period.

Overall

, the building's floor, which has four main rooms on its corners, saw spectacular evolutionary changes and many new facilities have been established. The lecture site, Café, computer field, information section, and self-service machine facility were not available 20 years ago;

however

, the entrance doorway is still located in the southern part of the building as it used to be.

Furthermore

, some sections of the library just have been relocated. The reading space, the southwestern part of the floor, altered into the computer area,

also

its door is now on its right side. The CDs, computer games and videos were kept in the northwest room, but today

this

field was altered into the storytelling field and children’s fiction book storage.

Additionally

, it is enlarged downward in size. The northeast room used to be the region for children's books;

while

it is a lecture room now. In conclusion, more than three novel facilities became available in the mentioned period, namely; a lecture site, Café, information site, and self-service machine.