150,000 per day, per person.

Are the books really free?

Yup.

Really?

Yes.

Absolutely free?

Yes.

What's the catch?

All the books have been stamped "not for resale". That's it.

Is there a limit to how many books I can take?

You can only take 150,000 per day, per person.

When are you open?

We are open EVERY (52) Saturday and Sunday 9am -6pm including holidays and blizzards. There are drop-off bins by the entrance for after-hours donations.

http://www.bookthing.org/faq.html