WHAT IS IT ?

Check out this riddle, I have for you.
Solve this mystery with this clue.
A seven letter word, is the first hint,
You gather information that's found in print.
Inside this place you can always find,
More words than you can fill your mind.
With plenty of books for you to choose,
It's far more than you could ever use.
Your favorite authors are listed from A to Z,
You can check out these books for free.
Discover your category, you love to read,
Use a Dewey system when there's a need.
It sure comes in handy when you know,
There's always a place that you can go.
It's a fascinating site, you got to admit.
The whole family can come, so what is it?

It's a Library!