Terms of Sale


All books are subject to prior sale. We accept all major credit cards, money orders, and PayPal.  If you prefer not to order online, you are welcome to call us with your order at 937-232-4762. Our voice mail is secure, and you can safely leave a message with your credit card details. However, the website does have security measures in place to protect the loss, misuse and alteration of the information under our control. We use 256-bit SSL encryption to protect your financial information.

Advance payment is requested for most orders. Established customers, institutions, and booksellers known to us may request shipment with invoice (net 30). We offer reciprocal courtesies to the trade.


All books ordered online are returnable for any reason within a month of receipt, as long as they remain in the original condition. DP's PBs will pay return shipping if a book is described incorrectly. The buyer is generally responsible for return shipping if the book is returned for other reasons. Please let us know if you are sending a book back so we will be on the lookout.


All of our books are carefully and securely packaged to avoid damage during shipping.

For customers in the United States, we offer free shipping via U.S. Media Mail for orders of $20 or more. For orders under $20 or requiring faster shipping, we offer two basic options, all by U.S. Mail:

Media Mail, which can take 4-14 business days (how long generally depends on the distance between us and you) is $4.00 for the first book and $2.50 for each additional book. Automatic upgrade to First Class for light books.

Priority Mail takes 2-4 business days and is $5.95 for the first book and $4.00 for each additional book.

International orders:

For all countries other than Canada and Mexico, shipping for the first book is $23.95, each additional is $22.00.

For Canada and Mexico, the first book is $19.95, and each additional is $15.00.

Both international and domestic customers should be aware that our standard shipping costs are based on an average (1-2 lb) sized book. In most cases, we will absorb the cost of shipping if it turns out to be over our quoted cost. However, for some very heavy books or sets of books, it will be necessary for us to contact you to request that you pay an additional postage cost. For such items, we will never charge you more than the actual cost of postage, and you will always have the opportunity to cancel your order if you do not wish to pay the additional charge.