This looks like a potentially great deal! There are some books that just never go on sale, so 30% off of those will be great. 30% off of bargain books is GREAT, looks like it will also work on ‘gift’ items (only the items in that section maybe) and toys. The fine print, not shown, does say it is not valid on electronics or their accessories though 😦
You will need your Teacher ID, I am guessing your respective ‘teacher cards’ (ie. OCT in Ontario). You may also need photo ID to match up, so make sure you have some on you.