1.1in.

Thank you very much for considering us. If you are a book lover, you have come to the right place . . . We do our best to get orders processed right away. We sell used books. Please rely on the below grading definitions before you make your purchase and also be advised that the cover of the book you receive may not be the same as in this listing's stock picture. Book Conditions . . . Acceptable Condition A book with obvious wear. May have some damage to the cover but integrity still intact. The binding may be slightly damaged but integrity is still intact. Possible writing in margins, possible underlining and highlighting of text, but no missing pages or anything that would compromise the legibility or understanding of the text. See the seller?s listing for full details and description of any imperfections. Good Condition A book that has been read but is in good condition. Very minimal damage to the cover including scuff marks, but no holes or tears. The dust jacket for hard covers may not be included. Binding has minimal wear. The majority of pages are undamaged with minimal creasing or tearing, minimal pencil underlining of text, no highlighting of text, no writing in margins. No missing pages. See the seller?s listing for full details and description of any imperfections. Very Good Condition A book that does not look new and has been read but is in excellent condition. No obvious damage to the cover, with the dust jacket (if applicable) included for hard covers. No missing or damaged pages, no creases or tears, and no underlining/highlighting of text or writing in the margins. May have very minimal identifying marks on the inside cover. Very minimal wear and tear. See the seller?s listing for full details and description of any imperfections. Like New Condition A book that looks new but has been read. Cover has no visible wear, and the dust jacket (if applicable) is included for hard covers. No missing or damaged pages, no creases or tears, and no underlining/highlighting of text or writing in the margins. May have very minimal identifying marks on the inside cover. Very minimal wear and tear. See the seller?s listing for full details and description of any imperfections. Brand New Condition A new, unread, unused book in perfect condition with no missing or damaged pages. See the seller's listing for full details.