I ordered this book for my sons class, and after no response to my order from the seller, I took it upon myself to ask what was the hold up, but it was too late, my son got a very low grade because the seller neglected to inform me in a timely manner that they could not find this book. The bookstores around here were all out becuase of the high demmand for the school district.I recommend that no one buys from this seller.